Patent application number | Description | Published |
20090049729 | FIRING PIN ASSEMBLY - A firing pin assembly is provided that includes a firing pin and a firing pin shaft. The firing pin is received in a slot of the end of the firing pin shaft to be retained therein with a spring retaining sleeve, a main spring, and a mainspring sleeve. The firing pin is removable from the firing pin assembly and can be replaced to result in a prolonged use of the firing pin assembly. The firing pin assembly will operate as a one-piece unit when the spring retaining sleeve is oriented to hold the components securely in place. | 02-26-2009 |
20100154274 | RECEIVER-STOCK CONNECTOR - A receiver-stock connector ( | 06-24-2010 |
20100236120 | TRIGGER ENGAGEMENT LINK FOR FIREARM - A fire control assembly for a firearm includes a trigger engagement link comprising a forward end, a rearward end, and an intermediate portion. The fire control assembly further includes a sear including a bottom portion engageable with the intermediate portion of the trigger engagement link, and a hammer moveable between cocked and firing positions. The hammer includes a link displacement portion operable to displace the forward end of the trigger engagement link as the hammer is moved from its firing position to its cocked position. The displacement of the forward end of the trigger engagement link by the link displacement portion of the hammer disengages the intermediate portion of the trigger engagement link from the bottom portion of the sear so as to at least temporarily deactivate the fire control assembly. | 09-23-2010 |
20100236396 | CLAMPED GAS BLOCK FOR BARREL - A gas block clamping apparatus for a firearm includes a plurality of sections, each including a shaped upper section, and a lower cylindrical section to which the shaped upper section is attached. A plurality of clamp sections are symmetrically disposed on opposite sides of a barrel of the firearm, each clamp section having an upper surface for attaching the gas block to the barrel, a curved surface that aligns the clamp section to an outer surface of the barrel when the clamp sections are tightened, and a lower surface that aligns with the shaped upper section of the gas block. A plurality of fasteners are disposed through a plurality of openings in the lower surface of the clamp sections and the shaped upper surface of the gas block for securing each clamp section to both the barrel and gas block. | 09-23-2010 |
20100251885 | GAS SYSTEM FOR FIREARMS - A piston assembly is provided for a gas-operated firearm of the type having a chamber and a barrel. The piston assembly includes a gas expansion housing and a piston mounted within the gas expansion housing. An annular recess is formed in the outer wall of the piston to receive exhaust gases diverted from the barrel upon firing of the firearm. At least one longitudinally extending groove extends from the annual recess to the head of the piston and forms a pathway for diverting the exhaust gases to the head of the piston. During firing, pressurized gases are diverted into the annular recess and expand longitudinally from the annular recess to the piston head, whereupon the pressurized exhaust gas drives the gas piston rearwardly along the housing. | 10-07-2010 |
20100281731 | PIVOTING, NON-DETACHABLE MAGAZINE - An improved firearm including a non-detachable, pivoting magazine is disclosed. The magazine is pivotally attached at its rear end to a sliding arm. The sliding arm is slidably retained within the magazine well of the firearm. The sliding arm is configured to move upwardly and downwardly within the track to allow the magazine to be raised into and lowered out of the magazine well. When the magazine is lowered out of the magazine well, the magazine can be pivoted about its pivotal connection with the sliding arm such that a front end portion of the magazine pivots downwardly and rearwardly to allow ammunition cartridges to be loaded into and unloaded from the magazine. | 11-11-2010 |
20100282065 | GAS SYSTEM FOR FIREARMS - A piston assembly is provided for a gas-operated firearm of the type having a chamber and a barrel. The piston assembly includes a gas expansion housing and a piston mounted within the gas expansion housing. An annular recess is formed in the outer wall of the piston to receive exhaust gases diverted from the barrel upon firing of the firearm. At least one longitudinally extending groove extends from the annual recess to the head of the piston and forms a pathway for diverting the exhaust gases to the head of the piston. During firing, pressurized gases are diverted into the annular recess and expand longitudinally from the annular recess to the piston head, whereupon the pressurized exhaust gas drives the gas piston rearwardly along the housing. | 11-11-2010 |
20100319231 | HAND GUARD ATTACHMENT SYSTEM FOR FIREARMS - A hand guard attachment assembly for a firearm having a barrel and a receiver fastened to the barrel by a barrel nut. The hand guard attachment assembly includes a forearm having a monolithic mounting rail/hand guard that is removably connected to the receiver. The monolithic rail/hand guard interfaces with an integral multi-slot mounting portion of the receiver. A cinch block is mated to the slots of the receiver and held in place by the monolithic rail/hand guard. A tension block is mated at one end of the monolithic rail/hand guard and is attached to the cinch block by a fastener to securely hold the monolithic rail/hand guard in place. | 12-23-2010 |
20130227871 | Cancellation muzzle brake assembly - A muzzle brake assembly for a firearm provides several benefits including an ability to reduce firearm recoil by redirecting the propellant gases and reshaping the pressure wave in a new manner, reduction or substantial elimination of muzzle movement upon discharge, lessening the acoustic signature of the firearm closer to non-braked levels and relatively easy and low cost to manufacture by current machining practices thereby minimizing cost of manufacturing. Ports in the muzzle brake assembly are arranged opposing one another about a circumference of the muzzle brake assembly. | 09-05-2013 |
20140259842 | ELASTOMERIC EXTRACTOR MEMBER - A biasing member for a bolt assembly of a firearm is described herein. The biasing member comprises a body having a first portion configured to engage and seat within a biasing member receiving indentation of an arm of the extractor, and a second portion configured to engage and seat within a receiving area along a bolt of the firearm. The body provides a biasing force directed against the extractor arm. The body comprises an elastomeric material, and is configured such that the first and second portions provide varying levels of compression sufficient to maintain a substantially constant extractor tension between the extractor arm and a cartridge. | 09-18-2014 |