A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

A semiautomatic shotgun comprising a receiver, a barrel, a forward gas block assembly attached to the barrel, a slider assembly rearward of the gas block assembly extending into the receiver. Upon firing a shotshell the explosive gases in the barrel are diverted through two ports into the gas block assembly, specifically into a pair of lateral pressure relief valves positioned on both sides of the barrel. The pressure relief valves further having a gas pathway from the barrel provided by clusters of holes less than a specific size and on-center with the barrel axis. A piston is forced rearwardly and engages a slider of the slider assembly that is linked to a breech block in the receiver. The breech block loads unfired shells and ejects the fired shells accomplishing the semiautomatic recycling. The dual pressure relief valves actuate to moderate and limit the gas pressure that enters the piston chamber when using shotshells of different power levels thereby providing consistency in the recycling operation. The shotgun assembled with a plurality of retention pins having uniformly sized O-rings.

A firearm and a jig for modifying or constructing a firearm with a locking magazine release button is provided. The firearm has a lower receiver including a magazine locking pin aperture disposed in an upper surface thereof where the magazine locking aperture intersects with a magazine release button aperture in a side surface of the lower receiver. The firearm also has an upper receiver attached to the lower receiver via a pivot pin, a magazine attachable to the lower receiver, a magazine locking pin inserted into the magazine locking pin aperture, and a magazine release button comprising a recessed locking catch. The magazine release button releases the magazine when the upper receiver is away from the lower and the pin is not in the magazine locking aperture. The button is inoperable when the upper receiver is next to the lower receiver and the pin engages the locking catch.

An improved trigger assembly for a firearm includes twin disconnectors that are each independently selectable and adjustable to provide different trigger pull weights. The trigger assembly may be operably controlled by the safety selector which defines several different shaped engaging surfaces that allow the operator to selectively choose which of the disconnectors to operate with the firearm.

An improved trigger assembly for a firearm includes twin disconnectors that are each independently selectable and adjustable to provide different trigger pull weights. The trigger assembly may be operably controlled by the safety selector which defines several different shaped engaging surfaces that allow the operator to selectively choose which of the disconnectors to operate with the firearm.

The invention pertains to the rotating head (20) found in the bolt action assembly (A) of the gas-operated, recoil-operated, or bolt action, or lever-action hunting shotguns and is characterized in that it pertains to a fixing shaft (13) with a fixing plane (14) formed at the end of the cam action groove (12) located on the body (10) of the bolt action (A), a spring shaft (22) formed on the rotating head (20) positioned within the passage hole (11) located in the body (10) of the bolt action (A), a mounting hole (23) formed in the spring shaft (22) on the rotating head (20) positioned within the passage hole (11) located in the body (10) of the bolt action (A), a rotation spring (30) with a mounting lug (31) located at one end and a fixing lug (32) at the other end.

An AR-style firearm includes a specially designed lower receiver, a specially designed upper receiver mounted to the lower receiver, a hand grip mounted to the lower receiver, a handguard mounted around a barrel, a specially designed magazine well formed in the lower receiver that is configured to receive an AK-47 magazine or similar magazine, and a specially designed, ambidextrous magazine release that holds and selectively releases the magazine from the magazine well.

A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

A loading device and method of using same with a rifle having a fixed magazine are disclosed. The loading device may comprise a housing having a channel, a plunger slideably disposed within the channel, and a spout extending away from the housing. The spout is configured to fit within an ejection port of the rifle. The plunger may include an articulating arm extending away from one end of the plunger, wherein the arm includes a plug disposed about one end for pushing ammunition cartridges into the fixed magazine. The loading device advantageously permits efficient and rapid reloading of ammunition into the fixed magazine.

A gas exhaust system for a gas operated firearm may include a rear part connected to a gas block of a gas operating system, and a front part connected to the rear part. The rear part and front part have a flow path defined therealong that allows for venting of gases from the gas operating system. The rear part can have a regulating portion that regulates or control the amount of gases released from the gas operating system.