Nov 11, 2025

US12467706 - Trigger mechanism for firearms

The invention is aimed at improving the accuracy of shooting by reducing the force on a trigger of a firearm during firing. The technical result is achieved by the fact that the design of the trigger mechanism includes a housing in which a hammer and a hammer spring are installed, a tubular axle on which the trigger having a groove allowing longitudinal movement along the axle is installed, thereby disengaging a return mechanism installed in its housing, a roller sear, and a single-fire sear. To engage the return mechanism, the trigger and the hammer are equipped with cams, and when a breechblock carrier is recoiled, the hammer is lowered and its cam affects the trigger cam, forcing the trigger to move backwards (if it has been moved to a forward position before). The return mechanism is also engaged when a safety lock is activated.

Inventors: Nikolai Pushkarev
Filing date: 2024-07-08

triggerfirearmmechanismaccuracy

The patent describes a trigger mechanism designed to enhance shooting accuracy by minimizing trigger pull force during firing. It features a unique design with a hammer, roller sear, and a trigger that allows for longitudinal movement, engaging a return mechanism when activated by the hammer or safety lock.

Claim 1

1 . A trigger mechanism for a firearm, comprising: a trigger; a hammer having a notch for receiving a roller; a sear connected to the trigger; and the roller mounted on the sear and configured to roll on an engagement surface of the notch made in the hammer; wherein the trigger has a guide rod having a protrusion engaging with a plunger holding the trigger in a firing position; wherein the trigger has a groove through which the trigger is configured to freely move when engaging with the plunger; and wherein the hammer and the trigger have cams engaging with each other and configured to return the protrusion of the trigger to the firing position. a trigger; a hammer having a notch for receiving a roller; a sear connected to the trigger; and the roller mounted on the sear and configured to roll on an engagement surface of the notch made in the hammer; wherein the trigger has a guide rod having a protrusion engaging with a plunger holding the trigger in a firing position; wherein the trigger has a groove through which the trigger is configured to freely move when engaging with the plunger; and wherein the hammer and the trigger have cams engaging with each other and configured to return the protrusion of the trigger to the firing position.

Google Patents

https://patents.google.com/patent/US12467706

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12467706