Ammunition

Patents tagged Ammunition

Nov 11, 2025

US12467703 - Cartridges for recoil management of shoulder fired weapons

A cartridge ( 20 ) has a cartridge case ( 22 ) extending along an axis ( 500 ) from a base ( 104 ) to a mouth ( 102 ) and having an interior. A projectile ( 24 ) is mounted in the case. A propellant ( 26 ) is contained within the case. The propellant has an annular grain encircling the axis.

Nov 11, 2025

US12467708 - Bullet trap blank firing attachment for use with a firearm

The disclosure is directed at a blank fire bullet trap attachment (BFBTA) that provides improved protection for firearm users when live ammunition is accidently loaded into the firearm. The BFBTA includes a barrel portion made of a first metal; and a hardened element portion made of a second metal, the hardened element portion sized to frictionally fit within the pipe portion; wherein the first metal is softer than the second metal, such that when live ammunition contacts the hardened element portion, the hardened element portion slides within the barrel portion.

Nov 11, 2025

US12467727 - Ammunition blank and corresponding bolt

An ammunition cartridge casing has a casing base with a proximal end surface, a casing body defining an inside volume, and a distal end portion. The casing base defines a primer pocket in communication with the inside volume of the casing body, where the primer pocket is sized and configured such that when a primer is installed in the primer pocket, a proximal face of the primer is recessed into the base at least 0.010″ with respect to the end surface. Blank ammunition made with the cartridge casing is configured for use with a rifle having a bolt with a boss on the breech face that corresponds to the recessed primer.

Nov 4, 2025

US12460887 - Suppressor

A suppressed firearm can include a firearm including a slide; and a suppressor configured to mount to the firearm, the suppressor including a suppressor cap, the suppressor cap defining at least one protuberance configured to rotationally interlock with the slide. A suppressor cap can include a flange defining a through hole, the through hole defining an axis; a first lug extending axially outward from the flange, the first lug defining a first radially inner surface; and a second lug extending axially outward from the flange, the second lug defining a second radially inner surface positioned parallel to the first radially inner surface, the axis centered between the first radially inner surface and the second radially inner surface.

Nov 4, 2025

US12460907 - Light weight ammunition and firearm systems

A firearm system includes a bolt carrier with an internal cavity, a piston disposed within the internal cavity, a forward configuration where the piston is in a forwardmost position relative to the bolt carrier, and an aft configuration where the piston is in a rearmost position relative to the bolt carrier. The piston slides forward and aft relative to the bolt carrier. In the forward configuration, the entire piston remains disposed within the bolt carrier.

Nov 4, 2025

US12460909 - Polymer jacked solid core projectile

Provided is a polymer jacketed projectile with metal core. The projectile includes a metal bullet core and a monolithic polymer bullet jacket surrounding a portion of the bullet core. The jacket includes a series of radial driving bands cut into the jacket in a graduated configuration at increasing thicknesses. The graduation and increasing thickness of the driving bands allows gradual radial acceleration upon engraving of the rifling due to intentional radial deformation of the forward driving bands. Additionally, the bullet core) includes high-friction surfaces formed in a longitudinal direction or at a base of the bullet core. The modified surface increases friction between the bullet core and polymer, further decreasing radial slippage.

Nov 4, 2025

US12460911 - Progressive ammunition press system

Progressive ammunition press system, components thereof, and associated methods. The press system may include a press control system integrated with the press. The press may include a case carriage including a case carrier supported by a bearing. Case retainer gates may be provided for retaining cases in the case carrier. A bullet feeding system can be arranged to permit bullet feeding and seating in a single station of the press. A primer feeder can be self-contained, gear-driven, and/or recirculating.

Oct 28, 2025

US12455130 - Firearm magazine with molded seam

A firearm magazine having a body constructed by a two-stage process. First, a fabrication stage shapes a sheet material into a substantially tubular magazine body with a joint having one or more retainers formed along the mating ends. Second, a molding stage joins the mating edges using a plastic that fills the joint between the mating edges. One or more retainers along the mating ends are designed to distribute forces applied to the magazine body along the seam and provide support from the sheet material to secure the connection rather than rely on the tensile strength of the filler material to maintain the joinder of the mating edges.

Oct 28, 2025

US12455150 - Extended range bullet

A cartridge with an expanding bullet that has advantageous terminal effects over an extended range. The expanding bullet including a bullet body including a metal jacket extending from a tail portion to a nose portion and surrounding an interior solid core and defining a forward opening and interior cavity. A tip has an exterior surface substantially flush with an exterior surface of the metal jacket. The tip has a main portion forward of the opening and a tip retention portion that at least partially fills the interior cavity. In certain embodiments the tip retention portion includes one or more fluid entry facilitation means such as a fracture regions configured to, upon impact of the bullet with a target, fracture or deform to expose one or more fluid pathways into the interior cavity and to a forward facing interior surface for initiating expansion of the expanding bullet.

Oct 28, 2025

US12455151 - Multipurpose projectile apparatus, method of manufacture, and method of use thereof

Disclosed is a projectile comprising: (1) a metal core, such as a copper alloy core, including a base and a tip, where the base and the tip are separated by a core length along a z-axis running longitudinally through a center of the metal core; and (2) a jacket circumferentially attached to the metal core, the jacket surrounding at least fifty percent of the core length of the metal core, where the jacket includes: a polymer and a first jacket radial thickness along at least a section of an interquartile portion of the core length of greater than 0.03 inches.

Oct 21, 2025

US12449219 - Firearm suppressor and self-torquing feature

A suppressor for a firearm may include a core and a tube. The tube may be arranged around the core. The core may have a first longitudinal axis and include a first proximal end, a first distal, and a first end cap disposed adjacent to the first proximal end. The first end cap may include a proximal end wall and an opening for receiving a barrel of a firearm. The opening for receiving the barrel of the firearm may extend from the first proximal end to a first interior end wall. A bore may extend from the first interior end wall to the proximal end wall. The core may further include a first static vane spaced from the proximal end wall along the first longitudinal axis, and an array of baffles aligned with the bore, the array of baffles being arranged between the first static vane and the distal end.

Oct 14, 2025

US12442624 - Integrated ammunition cartridge

According to some embodiments of the present invention, an ammunition cartridge is provided herein. The ammunition cartridge may include a cartridge enclosure comprising a cartridge case portion and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling; and a base, connectable to the cartridge enclosure, wherein the base comprises an ignition device, wherein the cartridge enclosure comprises a section configured to control the detachment of at least some of the jacket portion from the cartridge case. According to some embodiments of the present invention, another ammunition cartridge is provided herein. The ammunition cartridge may include: a cartridge case portion; and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling, wherein the jacket portion is made of at least one of: polymer material, and composite material.

Oct 14, 2025

US12442625 - Cartridge case and tool for joining the base piece and case jacket of a multi-part cartridge case

A cartridge case for ammunition may include a rotationally shaped case jacket for receiving a projectile and an annular base piece for receiving a primer and the case jacket. An annular wall of the base piece on the side of the case jacket is conically shaped at least in sections with respect to its axis of rotation. A retaining section of the case jacket on the side of the base piece is adapted in shape thereto so that the retaining section engages at least in sections behind the annular wall for fastening the case jacket and the base piece to one another. A distancing of the base piece and case jacket from each other may be prevented in the direction of the axis of rotation. The conical annular wall and the retaining section may be formed by plastic deformation of the base piece.

Oct 14, 2025

US12442626 - Two-part polymer ammunition casing

A method of manufacturing a casing for an ammunition cartridge includes injection molding a first polymer forming a first part of the casing. The first part is cylindrically shaped along a longitudinal axis extending from a projectile end opposite a stepped end. The stepped end forms a first end of a mechanical connection. A portion of the injection mold is removed and an additional injection mold is disposed about the stepped end of the first end of the first part and a second polymer injected forms a second part of the casing. The second part includes a second stepped end forming a second end of the mechanical connection. The first and second end are mechanically locked together preventing a separation of the first part from the second part. A thermal swagging tool forms a conical tapered region along the projectile end of the first part.

Oct 7, 2025

US12435942 - Suppressor for a firearm

A suppressor for a firearm has a body defining an internal volume, a baffle in the body and defining a baffle aperture on a bore axis, a piston element including a mount facility configured for connection to the barrel, the piston element defining a piston bore registered with the bore axis, and the piston element operable to reciprocate with respect to the body along the bore axis between a rest position in which the piston element contacts the baffle and a recoil position in which the piston element is away from the baffle. There may be a spring interfacing the piston element and the body and be operable to bias the piston element to the rest position. There may be a second spring operable to interface the body and the piston element only when the piston element is in a range of positions proximate the recoil position.

Oct 7, 2025

US12437179 - Modular ammunition counter

A method and apparatus for counting belted or bulk ammunition rounds. The modular ammunition counter includes a detachable electronics assembly, an ammunition guide for receiving the ammunition rounds, and a sensor module. The electronics assembly is configured to count the number of ammunition rounds that pass through the coupled ammunition guide. This method of ammunition round counting offers a significant improvement in speed and accuracy compared to manually counting the ammunition rounds by hand.

Sep 30, 2025

US12429317 - Nonfragmentation munition

A radially firing munition defining a longitudinal axis and comprising a nonfragmenatary hollow collar having an inner surface and an outer surface opposed thereto with a first plurality of ports extending therebetween in a substantially radial direction. An ammunition is disposed in each port of the first plurality of ports and oriented outwardly from the longitudinal axis. An ignition source is provided for expelling each ammunition from the collar in response to an ignition signal.

Sep 23, 2025

US12422205 - Firearm magazine

A firearm magazine includes a tubular body defining a hollow interior and having a forward wall, a rearward wall, a first side wall, a second opposite side wall, an open top and an open bottom opposite the open top. The forward wall includes a joint at which a material of the tubular body is joined together, wherein the joint runs along the forward wall between the open top and the open bottom. A clamp is slid onto the tubular body and compresses at least a section of the forward wall, which section comprises the joint, in a side-to-side direction.

Sep 23, 2025

US12422206 - Ammunition feeding system

Disclosed is an ammunition feeding system for firearms having a double round feeding magazine, which facilitates the feeding of ammunition into the firing chamber and prevents the position of the ammunition in the magazine from changing and/or shifting during the feeding process.

Sep 23, 2025

US12422207 - Detachable ammunition magazine

An ammunition magazine for a firearm includes a magazine body defining an interior space in which a plurality of cartridges is receivable, a follower in the interior space configured to bias the cartridges toward an upper end of the magazine body, and a catch on the magazine body configured to hold a topmost cartridge received in the interior space in a substantially horizontal position within the upper end of the magazine body until an advancing bolt of the firearm pushes the topmost cartridge toward a firing chamber of the firearm.

Sep 23, 2025

US12422230 - Molded power charge with secondary pellet at each end

A system for a molded power charge with secondary pellet at each end. The molded power charge includes a solid outer wall which extends for the length. The solid outer wall has a first end and a second end. The power charge further includes a secondary pellet at each end. The first end and the second end of the outer wall include a secondary pellet with an exposed face. This allows the power charge to be ignited from either end.

Sep 23, 2025

US12422231 - Spinning projectile

A projectile, includes a head having a forward tip and a rear end, a stem extending from the rear end of the head and formed integrally with the head, and a sleeve positioned adjacent to the head and being collinear with the head and coaxial with the stem. The sleeve is hollow and substantially cylindrical and has an inner diameter and an outer diameter. A base is formed integrally with the stem by pressing a rearward end of the stem and expanding a rear dimension of the stem to capture the sleeve between the base and the head. The head and the base are rotatably dependent upon each other by connection with the stem, and the head, stem, and base are rotationally independent of the sleeve.

Sep 23, 2025

US12422232 - Bullet system with multiple drag-reducing capabilities

A bullet system ( 1 ) for use with a weapon upon firing, the bullet system ( 1 ) including a main body ( 3 ) acting as a projectile, as well as a first, second and third drag-reducing assemblies ( 5 a, 5 b, 5 c ) for providing the bullet system ( 1 ) with reductions of base drag, frontal drag and skin drag, during flight trajectory, the drag-reducing assemblies ( 5 a, 5 b, 5 c ) being fluidly connectable to one another via a common longitudinal channel ( 11 ), and the most frontward ( 5 b ) of said drag-reducing assemblies ( 5 a, 5 b, 5 c ) being provided with a material capable of being converted into an operative vapor discharge to be released from an orifice located at the bullet tip for covering the outer surface of the main body ( 3 ) of the bullet system ( 1 ) with said operative vapor discharge during flight, and thus, reducing the skin and frontal drag of the bullet system ( 1 ) during flight; wherein the first drag-reducing assembly ( 5 a ) is being provided about a rearward portion of the main body ( 3 ) for providing the bullet ( 1 ) with a reduction of base drag during flight trajectory.

Sep 23, 2025

US12422233 - Penetrator, use of a penetrator, projectile and cartridge ammunition

The invention relates to a penetrator for a projectile, in particular a sub-caliber kinetic energy projectile, wherein the penetrator has a terminal-ballistic body for attacking an armored target, wherein a hole is formed in the body, which extends along or parallel to the central longitudinal axis of the body entirely or along a predominant portion of the length of the body, wherein at least one exactly fitting insert part is introduced into the hole, which has a through-opening extending along or parallel to the central longitudinal axis of the insert part for guiding through an electrical or electronic line.

Sep 23, 2025

US12422235 - Optical spectrum light-curable cartridge case sealant method and apparatus

A method of sealing an ammunition cartridge during an ammunition manufacturing process. The method including providing a cartridge case having a projectile receiving mouth with an inner surface and applying a thin circumferential film of a liquid light curable sealant to the inner surface. A cured thin circumferential film is formed by curing the thin circumferential film of liquid light curable sealant using an effective curing light from an optical light spectrum. A projectile is inserted into the mouth of the cartridge case with the cured thin circumferential film forming an air and moisture impermeable seal between the inner surface and the projectile.

Sep 23, 2025

US12422236 - Dispenser for firearm ammunition powder

A dispenser for dispensing powder for firearm ammunition and associated methods. The dispenser can include a hopper, a conveyor, a scale sensor, a dispensing head, a dispenser controller, and a tangible storage medium storing instructions executable by the dispenser controller. The dispensing head is movable to a plurality of dispensing positions to dispense ammunition powder to a plurality of cases from the plurality of dispensing positions. In some embodiments, the dispensing head moves between a home position, where the dispensing head receives powder from the conveyor, and the plurality of dispensing positions, where the dispensing head delivers loads of powder from the conveyor to individual ammunition cases.

Sep 9, 2025

US12410981 - Additive manufacturing enhanced sidearm

An additive manufactured enhanced sidearm comprising an ejectable barrel group assembly having two barrels, each with a chamber, in an under and over configuration thereby forming a top and bottom, and preloaded with keyed rounds having a series wherein each of said projectiles is keyed via a keyway in a chamber in said barrel, each of said projectiles in said barrel group are keyed having 0 to 4 keyways formed in the side of the projectile said projectiles having a propellant and primer means disposed behind said projectile in said chamber, a series of electrical contacts disposed within said chambers in communication with said primer means, a rail disposed at the bottom of the barrels with a locking notch means, a battery disposed with said ejectable barrel group, a grip assembly in communication with said ejectable barrel group assembly said grip assembly comprising a hand grip, a pc board disposed within said hand grip, a trigger group disposed upon said pc board, a high voltage generator circuit disposed on said pc board, at least one recoil plate assembly disposed upon said pc board, at least one microprocessor disposed upon said pc board, and a removable safety block that interferes with the batter to pc board connection.

Sep 9, 2025

US12410983 - Firearm suppressor with components of two or more materials

A firearm suppressor is provided, including a tubular core, a baffle carried within the core, and a tubular mount. The core may be attached end-to-end to the mount. A cap may be attached end-to-end to the core opposite the mount. An intermediate member may be included, extending between the mount and the cap, and residing outboard of the core. The intermediate member may be welded to the mount and to the cap. The mount, the cap, and the intermediate member may be composed of one or more of titanium, aluminum, resins, polymers, composites, carbon fiber, and ceramics, whereas the core and the baffle may be composed of one or more of cobalt, nickel alloy, steel, stainless steel, and cobalt alloy.

Sep 9, 2025

US12410994 - Polymer-based cartridge casing for subsonic ammunition

A high strength polymer-based blank cartridge having a first end; a shoulder disposed approximate the first end; a second end opposite the first end; and an insert engaged to the second end. A metal sleeve extends between the shoulder and insert, and a polymer sheath covers at least the metal sleeve. A propellant chamber is formed between the shoulder and the insert by at least the metal sleeve, and the propellant chamber has an unobstructed and a reduced volume, wherein the reduced volume is reduced in comparison to a propellant chamber of a standard cartridge.

Sep 9, 2025

US12410997 - Ammunition magazine pouch and methods of assembling same

An ammunition magazine pouch is described herein. The ammunition magazine pouch includes a magazine support assembly including an interior surface defining a magazine chamber extending between an open top end and a closed bottom end. The magazine chamber is sized and shaped to receive at least one ammunition magazine therein. The magazine support assembly includes a front cover member including an inner surface defining a portion of the magazine chamber, a back plate member coupled to the front cover member to define the magazine chamber therebetween, and a tensioning assembly coupled to the front cover member and the back plate assembly for adjusting a distance between an upper portion of the front cover member and an upper portion of the back plate member to adjust a width of the open top end of the magazine chamber.

Sep 2, 2025

US12405075 - Belt-fed rotary gun

A belt-fed Gatling-style gun is provided. In some embodiments, the belt-feed system allows a plurality of individually separable belt links to be connected in series to feed cartridges to a belt-fed rotary gun. Each individual belt link may be removably connected to a series of belt links to facilitate ease of loading and making belts of ammunition of any length.

Sep 2, 2025

US12405094 - Dummy round

A dummy round includes a dummy round head and a dummy round case. The dummy round head is a polymer dummy round head. The dummy round case connected to the dummy round head. The dummy round case is a metal dummy round case. Since the dummy round is composed of the polymer dummy round head and the metal dummy round case, a polymer material has relatively low costs and is easy to process and shape. By properly combining the two different materials, the overall dummy round is formed. Compared with a traditional full-plastic or full-metal round, the dummy round has an overall weight closer to that of a real round, and the production costs are reduced.

Aug 26, 2025

US12398985 - Firearm cartridge case

A firearm cartridge case includes a short action cartridge case comprising a cartridge case main body portion and a cartridge case neck portion that are interconnected by a frusto-conical shoulder portion to form a bottleneck shape, a length L 1 of the cartridge case between a base of a rebated rim and an interface between the cartridge case main body portion and the frusto-conical shoulder portion, a ratio of the length L 1 of the cartridge case and a length of a projectile receivable within the cartridge case neck portion is between 3.5-0.9.

Aug 26, 2025

US12398986 - Firearm projectile device

A firearm projectile device is provided. The device is comprised of a projectile body with a partially hollow area that allows air to travel through the projectile and reduces the projectile's coefficient of drag. Both ends of the device are preferably pointed to further reduce the coefficient of drag of the device. In addition, the second end attaches to a fitted gas block that seals the projectile from a propellant within the casing of the device.

Aug 26, 2025

US12398988 - Bullet seating die

A bullet seating die for use with an ammunition press to seat a bullet in a case includes a die housing having an ammunition press mount for mounting the bullet seating die on the ammunition press. The die housing defines a bullet receiving space having an open end and a side window in communication with the bullet receiving space. The side window sized and shaped to permit the bullet to be inserted therethrough to position the bullet in the bullet receiving space. A seating stem is supported by the die housing. The seating stem is arranged to engage the bullet to press the bullet into the case when the ammunition press is operated. A spring biases the seating stem away from the open end of the bullet receiving space to permit the bullet to be inserted through the side window and into the bullet receiving space.

Aug 26, 2025

US12398989 - Ammunition reloading device

An ammunition cartridge case reloading die has a die body defined by an interior bore and a bore opening, and a retention cap attachable to the die body. A cartridge case tool is fixed to the retention cap in axial alignment with the interior bore, and a tip of the cartridge case tool is at a proscribed distance relative to the bore opening. A centering shuttle is in sliding engagement in the interior bore of the die body, and defines a shuttle bore through which the cartridge case tool passes, and a reverse taper opening receptive to the cartridge case. The die may has a biasing element disposed within the interior bore between the centering shuttle and the retention cap, with movement of the centering shuttle within interior bore of the die body being dampened by the biasing element.

Aug 12, 2025

US12385705 - Firearm ammunition availability detection system

A linear encoder may be used to accurately determine a number of cartridges within a magazine. Further, using a set of magnetic sensors within a buffer tube of a firearm, it is possible to determine whether a cartridge is loaded within a chamber of the weapon and/or whether the firearm is jammed. The determination of cartridges within the magazine in conjunction with the determination of whether a cartridge is in a chamber of a firearm can give a user an accurate ammunition count. Further, the use of the linear encoder makes it possible to accurately determine the cartridge count when different cartridges are loaded into the magazine or when the magazine degrades in quality over time. Moreover, the ability for magazines to communicate with a firearm enables a user to determine a total available ammunition to the user in a single display without individually checking each magazine.

Aug 12, 2025

US12385725 - Multifunction primer pocket correction tool and method of using same

A multifunction primer pocket correction tool that combines three cutting features in a single hand tool for use in ammunition reloading. The tool operates to cut the primer pocket depth, removes the military crimp and chamfers the leading edge of the flash hole in a single process. This combined tool includes a new technology in an external flash hole chamfer. This adds another level of safety and consistency with each casing, while still chamfering, and end milling the primer pocket, all while using the base of the casing as a backstop for consistent depth of cut.

Aug 5, 2025

US12379172 - Ammunition feed

The invention relates to an ammunition feed ( 1 ) for a gun barrel, in particular of an armoured vehicle, having at least one magazine and a rammer ( 2 ), the gun barrel having a loading space, it being possible for an ammunition ( 3 ) to be introduced from the magazine into the loading space by means of the rammer ( 2 ), and it being possible for an ammunition ( 3 ) to be led out of the loading space into the magazine by means of the rammer ( 2 ). An ammunition ( 3 ) can be guided out of a loading space particularly quickly and reliably by means of the ammunition feed ( 1 ), in that a pawl ( 4 ) is arranged movably on an end of the rammer ( 2 ) facing the cartridge, the pawl ( 4 ) being positionable in an engagement position ( 5 ) in order to guide the ammunition ( 3 ) out of the loading space into the magazine, the pawl ( 4 ) being arranged in a recess ( 6 ) of the ammunition ( 3 ) in the engagement position ( 5 ), the ammunition feed ( 1 ) being designed as an automatic ammunition feed ( 1 ), a control device being provided, the control device being connected in terms of control technology to at least one actuator of the rammer ( 2 ) and at least one actuator of the pawl ( 4 ), a type of ammunition being automatically selected on the basis of data of automatic target detection and/or automatic target recognition, by means of which a high probability of hitting and destruction of a target to be combated can be achieved.

Aug 5, 2025

US12379175 - High-capacity automatic magazine reloader

A high-capacity magazine reloader is disclosed, including a housing having an interior defined by a left side, a right side, a top, a bottom, a front and a back. The interior retains a plurality of rounds within a spiral channel having a first end nearmost a central axis and a second end forming an opening to permit the egress of the plurality of rounds. A spiral spring is biased to provide a rotational force to a first vertical member. A second vertical member is connected to the first vertical member via a horizontal member. The second vertical member is at least partially within the spiral channel to contact the plurality of rounds and force the plurality of rounds from the first end to the opening. A magazine receiver is positioned at the opening, the magazine receiver to releasably connect to a magazine of a firearm.

Aug 5, 2025

US12379194 - Polymer jacketed powder core projectile

A method is disclosed for coating a projectile for use in an ammunition cartridge. A polymer jacket is applied to an undersized projectile core of a first standard caliber to bring the outer dimensions of the jacketed projectile into compliance with those of a second, larger caliber projectile. The polymer jacket coating may produce a non-uniform outer diameter of the polymer jacketed projectile and may include a plurality of circular cavities defined therein. The polymer-jacketed projectile may be a bullet for pistol or rifle ammunition, or a pellet, or shot for use in a shotgun shell.

Aug 5, 2025

US12379195 - Method for manufacturing an ammunition cartridge and ammunition cartridge

The present invention pertains to the field of the arms industry and metallurgy, and also to the fields of materials engineering and chemical engineering. More specifically, the present invention refers to a novel ammunition cartridge comprising reinforced polymer and the manufacturing process thereof. The ammunition cartridge serves for receiving the gunpowder so that explosion can occur inside the weapon barrel. The technology proposed reduces the quantity of components to be pre-manufactured and assembly processes on the product, producing a full cartridge, directly upon injecting the thermoplastic, and can also use bi-component injection. With this, the portion of the collar ring can be made entirely of fiber-reinforced polymer material, which reduces the weight of the item and is beneficial for the useful life of the weapon in the bolt region.

Jul 29, 2025

US12372338 - Method of reducing gun barrel heating

A cartridge includes a bullet on which there is formed a coating. At least an upper layer of the coating is porous and comprises a thermoset polymer and a filler. The filler may be a dry film lubricant. The cartridge may be used in a gun of the type that has a rifled barrel. A rifled barrel has a bore diameter and a groove diameter. The bullet may have a metal diameter that is less than the groove diameter but slightly greater than the bore diameter. The coated bullet may have a diameter that is greater than or equal to the groove diameter. When fired, the bullet produces less barrel friction and heating than a conventional bullet. The velocity of the coated bullets is greater and the velocity distribution is more narrow compared to uncoated bullets.

Jul 22, 2025

US12366436 - Nonfragmentation multiple vector munition

An elongate munition with a longitudinal axis and having a nonfragmenation hollow collar. The hollow collar has an inner surface and an opposed outer surface with a first plurality of ports extending through the collar in a substantially radial direction. The ports are spaced from adjacent ports in both circumferential and longitudinal directions. A first plurality of ammunitions is disposed in each port of the first plurality of ports and oriented outwardly from the longitudinal axis. An ignition source for expelling each ammunition outwardly from the collar responsive to an ignition signal is also provided.

Jul 15, 2025

US12359899 - Reduced tension cartridge case with two-stage neck

Devices and methods for reducing tension force on a projectile by a neck of a cartridge case. A two-stage neck has a clearance band and an interference band, the clearance band providing a reduced retention force on the projectile relative to the interference band.

Jul 8, 2025

US12350864 - Systems and methods for casting propellant grain

Systems and methods for casting solid propellants include a mandrel for forming geometric features in a perforation of a propellant grain. In various embodiments, the mandrel includes a frangible portion that is removed from the propellant grain after the propellant grain has cured around the mandrel. A second portion of the mandrel may be left behind in the propellant grain. The mandrel may include a support structured disposed in the through hole of the mandrel. The support structure may include a plurality of longitudinal channels for directed exhaust gasses through the mandrel upon ignition of the propellant grain.

Jul 8, 2025

US12352518 - Gas operating system for low energy ammunition

A gas operating system for a firearm for use with low energy ammunition that includes a barrel having a maximum pressure experienced at a maximum pressure location when firing the low energy ammunition where a gas port is positioned distally from the maximum pressure location in a region of the barrel that experiences between 90% of the maximum pressure and 40% of the maximum pressure, a gas block on the barrel and a tube connecting the gas block to a bolt carrier, where the gas block directs energy from combustion gas pressure vented through the gas port to the bolt carrier via the tube.

Jul 8, 2025

US12352520 - Magazine ammunition rounds detection and alert module

A module for detecting and notifying of the presence of ammunition in an ammunition magazine is provided, comprising a spring and a follower for containing and advancing ammunition within the magazine. A printed circuit board having electronics mounted thereon is mounted in a handle of a gun and includes a central processing unit with access to memory having executable instruction data thereon, at least one motion sensor for sensing motion of the printed circuit board, an eccentric motor, a connector providing remote digital access to the processor, at least one mechanism for erasing data or resetting parameters, and a battery bay for accepting a battery, at least one sensor for detecting position of the spring or follower. An amount of ammunition is thereby discerned by the central processing unit based upon the position of the spring or follower.

Jul 8, 2025

US12352521 - Magazine loader

A magazine loader assists in loading cartridges into a magazine of a firearm. An elongated sleeve has an open distal end and a hollow therethrough sized and shaped to receive a stack of cartridges. A collar at a proximal end of the sleeve has an enlarged opening sized and shaped to receive an open proximal end of the magazine. A plunger has a proximal end selectively receivable in the open distal end of the sleeve, and has an elongated shank slidable in the hollow of the sleeve and an enlarged head. The plunger presses the stack of cartridges through the hollow of the sleeve, out the enlarged opening of the collar and into the magazine.

Jul 8, 2025

US12352530 - Muzzle loading system

A muzzleloader includes a shot holding member having a first end configured to receive an object to be loaded into the muzzle and a second end; the shot holding member including a hollow shot holding chamber; and an actuator located at the first end of the shot holding member. The actuator includes a plunger having a head portion, a connector configured to connect the actuator to the first end of the shot holding member, a first O-ring configured to encircle the connector and located between the connector and the first end of the shot holding member, and a second O-ring configured to encircle the plunger and located between a head portion of the plunger and the connector.

Jul 8, 2025

US12352533 - Next shot compensation system for weapons

Use of a muzzle velocity detector with a display allows for a rapid calculation of a second shot firing solution based on a first shot analysis. A doppler radar emitter and detector is located in a housing. The housing has a mount that allows it to be coupled to a hand guard on a rifle. This allows for the muzzle velocity to be detected very close to the end of the barrel. Information about the bullet can be preloaded into a ballistics calculator. The ballistics calculator can be integrated with the muzzle velocity detector or coupled wirelessly to it. The impact location of the first shot is identified and that “drift” is used with muzzle velocity and many other factors to quickly provide a compensation to be used with the sight to ensure the second shot is more accurate.

Jul 8, 2025

US12352544 - Nonfragmentation missile and method of delivering a payload therewith

A missile for delivering a payload and having a longitudinal axis. The missile comprises a nonfragmenation multi-directional munition having a hollow collar. The hollow collar has an inner surface and an outer surface opposed thereto and a first plurality of ports extending therebetween in a substantially radial direction. An ammunition is disposed in each port of the first plurality of ports, oriented outwardly from the longitudinal axis with an ignition source for expelling such ammunition from the collar. The missile also has at least one flight control surface for controlling a trajectory of the missile during flight and a controller for controlling the flight of the missile and the ignition source.

Jul 8, 2025

US12352545 - Reduced stiffness barrel fired projectile

In various embodiments, a projectile includes a projectile body including a tail portion, a nose portion, a barrel engaging portion between the nose portion and the tail portion, and a metal jacket that defines an exterior of the projectile that surrounds an interior solid core. In one or more embodiments the projectile includes one or more circumferential grooves defined in the interior core portion, each of the one or more circumferential grooves covered by and positioned adjacent to the metal jacket and within the barrel-engaging portion. In various embodiments, during firing of the projectile, the one or more circumferential grooves define a void that allows material of one or more of the metal jacket and interior solid core to displace into the void for reduction in radial stiffness to the projectile in the barrel engaging portion.

Jul 8, 2025

US12352546 - Firearm ammunition component and method of use

A firearm ammunition component comprising a projectile body having a circular cross-section and a central channel on a forward face, a nose portion forward of the projectile body, and a gas check member rearward of the projectile body. The nose includes a curved forward end, a rear end opposite the forward end, and a stabilizing element/band between the forward and rear ends extending radially outwards from at least a portion of the nose. A shank extends from the nose rear end and within the body central channel. The gas check member includes a rearward annular wall portion forming a combustion chamber. The firearm ammunition component is adapted so only the stabilizing element/band contacts the firearm bore, ensuring loading central the bore.