Barrel

US12529539 - Integrally suppressed barrel system for velocity reduction of loads

An integrally suppressed barrel system for a firearm, the system comprises a barrel having a series of transverse holes and a spiral groove forming machine-type threads of some dimension or specification, a gas block assembly configured to provide integration with the gas cycling system inherent to a firearm, a gas tube configured to protrude back into an upper receiver of the firearm, and a suppressor having a main housing. The main housing of the suppressor includes an inner wall, an outer wall, a series of holes and a base attached to the barrel through machine threads. The suppressor is fixed in a concentric pattern about the bore of the barrel.

US12523437 - Multi-caliber firearm, a bolt and a barrel extension

A multi-caliber firearm includes a barrel extension configured to connect to an interchangeable barrel that is selected from at least two predetermined caliber sizes. An interchangeable magazine well receives a magazine that is selected to house cartridges from the predetermined caliber sizes. The magazine well includes a first end facing towards the stock and a second end facing towards the barrel extension. A bolt carrier group includes a bolt carrier and a bolt. A reverse movement unloads a used cartridge from the bolt and a forward movement loads a new cartridge from the magazine. The bolt carrier group receives an interchangeable bolt that is selected to load and unload one of the predetermined caliber sizes. The bolt includes a longitudinal cartridge retaining notch facing towards the magazine. The cartridge retaining notch is configured to retain the new cartridge in the magazine during the reverse movement.

US12516902 - Load balanced firearm barrel extension

A barrel extension configured to reduce the likelihood of premature bolt failure in automatic and/or semi-automatic style weapons. The barrel extension includes one or more cutouts within a body of the barrel extension. The cutouts are configured to reduce rigidity of the barrel extension proximal to the location of the cutout. As the rigidity around the extractor is lowered, the force on the bolt lugs is more evenly distributed. In one example, the cutouts are in the form of a single oval cutout positioned adjacent an extractor of the bolt.

US12504245 - Firearm receiver systems offering a fixed-barrel arrangement and pressure relief capability

A firearm receiver system comprises a receiver and a handguard. The receiver includes a front mounting body and a central bore configured for having a bolt carrier slidably disposed therein. The central bore includes a barrel-receiving receptacle at least partially located within the front mounting body. The handguard includes a handguard mounting body receptacle at a first end portion thereof. The front mounting body includes a plurality of interior surfaces each matingly engaged with a corresponding one of a plurality of exterior surfaces of the handguard mounting body receptacle. The receiver and the handguard may unitarily-formed body. The receiver may be configured for accommodating a barrel extension. The front mounting body may be configured for providing a fixed-barrel receiver system. The receiver may accommodate a pressure relief body for enabling the receiver to exhibit pressure relief functionality in the event of an over-pressure event within the receiver.

USD1107164 - Rifle barrel

USD1104197 - Firearm barrel

US12480729 - Firearms, systems, and methods for quick connection of a barrel to a firearm

Firearms, components, systems and methods to quickly connect or remove a barrel to or from an upper receiver, the receiver including an elongated body defining a central bore and configured to receive a barrel of a firearm, a cam positioned within the receiver and oriented transverse the central axis where turning the cam locks a barrel into the receiver, and in aspects includes a spring which straddles the barrel and applies a force to a hand guard which in turn applies force to a rim of the barrel to lock the barrel within the upper receiver.

US12467707 - Firearm barrel for lever action firearm

A firearm barrel for a lever action firearm. The firearm barrel has an inner barrel, and outer barrel, and a muzzle keeper. The firearm barrel may also include a gas bushing.

US12460886 - Reducing blow-by in firearms

A firearm barrel, including rifling formed of an alternating, spirally-extending plurality of grooves and lands defining a twist angle adapted for imparting rotation to a bullet being impelled through the barrel from a chamber end to and exiting a muzzle end. The plurality of lands each include a reduced width component communicating with the chamber end of the barrel for a predetermined distance towards the muzzle end of the barrel. The reduced width component defines an acute angle in relation to a longitudinal axis of the barrel adapted to cause a bullet being fired from the firearm to prevent blow-by gases to exit the barrel in advance of the bullet. A method of forming the firearm and barrel is also disclosed.