A bolt-action conversion device includes a slide clamp having a longitudinal cavity, a first pin hole, and a receiver in a direction orthogonal to the longitudinal cavity and substantially adjacent to a forward end of the slide clamp. The device also includes a locking plate having a second pin hole. A body portion of the locking plate has a narrow dimension and a broad dimension relative to the narrow dimension. When the locking plate is inserted into the receiver of the slide clamp with the first pin hole and the second pin hole aligned, an opening is formed between an upper surface of the locking plate and an internal surface of the longitudinal internal cavity. The longitudinal cavity accepts a slide of a firearm such that the opening is aligned with the barrel and at least a portion of the locking plate is aligned with a frame.

A bolt-action conversion device includes a slide clamp having a longitudinal cavity, a first pin hole, and a receiver in a direction orthogonal to the longitudinal cavity and substantially adjacent to a forward end of the slide clamp. The device also includes a locking plate having a second pin hole. A body portion of the locking plate has a narrow dimension and a broad dimension relative to the narrow dimension. When the locking plate is inserted into the receiver of the slide clamp with the first pin hole and the second pin hole aligned, an opening is formed between an upper surface of the locking plate and an internal surface of the longitudinal internal cavity. The longitudinal cavity accepts a slide of a firearm such that the opening is aligned with the barrel and at least a portion of the locking plate is aligned with a frame.

A self-loading pistol comprising a magazine shaft which can receive a magazine; a retainer which can hold the magazine releasably in the magazine shaft; and a magazine release which can cause the retainer to release the magazine. The magazine release can be operated from both sides of the self-loading pistol and comprises two release buttons which are arranged on different sides of the self-loading pistol. The magazine release further comprises two release levers which are disposed on different sides of the self-loading pistol. The magazine can be released by actuating either release button and/or by actuating either release lever.

A self-loading pistol comprising a magazine shaft which can receive a magazine; a retainer which can hold the magazine releasably in the magazine shaft; and a magazine release which can cause the retainer to release the magazine. The magazine release can be operated from both sides of the self-loading pistol and comprises two release buttons which are arranged on different sides of the self-loading pistol. The magazine release further comprises two release levers which are disposed on different sides of the self-loading pistol. The magazine can be released by actuating either release button and/or by actuating either release lever.

A self-loading pistol comprising a magazine shaft which can receive a magazine; a retainer which can hold the magazine releasably in the magazine shaft; and a magazine release which can cause the retainer to release the magazine. The magazine release can be operated from both sides of the self-loading pistol and comprises two release buttons which are arranged on different sides of the self-loading pistol. The magazine release further comprises two release levers which are disposed on different sides of the self-loading pistol. The magazine can be released by actuating either release button and/or by actuating either release lever.

A self-loading pistol comprising a magazine shaft which can receive a magazine; a retainer which can hold the magazine releasably in the magazine shaft; and a magazine release which can cause the retainer to release the magazine. The magazine release can be operated from both sides of the self-loading pistol and comprises two release buttons which are arranged on different sides of the self-loading pistol. The magazine release further comprises two release levers which are disposed on different sides of the self-loading pistol. The magazine can be released by actuating either release button and/or by actuating either release lever.

The invention comprises various minimal modifications to the upper receiver assembly of an AR-platform semiautomatic firearm whereby the firearm is reversibly converted to a pump-action firearm. The modifications comprise a means to introduce a push rod which passes through the front end of the upper receiver and connects a pump hand grip and the bolt carrier group of the firearm. The pump hand grip is guided and supported by the barrel and by a secondary guide rail disposed above the barrel.

The invention comprises various minimal modifications to the upper receiver assembly of an AR-platform semiautomatic firearm whereby the firearm is reversibly converted to a pump-action firearm. The modifications comprise a means to introduce a push rod which passes through the front end of the upper receiver and connects a pump hand grip and the bolt carrier group of the firearm. The pump hand grip is guided and supported by the barrel and by a secondary guide rail disposed above the barrel.

A production AR-style semi-automatic rifle (i.e. AR-15, AR-10, M-16, M-4, etc.) that has been converted to a single shot rifle includes: a) conventional rifle components, including a receiving trigger, trigger guard, barrel; b) a semi-automatic firing mechanism including a gas actuated casing ejection and bolt reset mechanism including a bolt carrier with two carrier gas key threaded receiving orifices and having no production carrier gas key and a having a dual-bored metal block gas blocking restrictor mechanism attached to the bolt carrier and positioned so as to inhibit\semi-automatic operation of the AR-style semi-automatic rifle by disabling the automatic gas actuated casing ejection and automatic gas actuated bolt reset functionality. In some embodiments, there is a modified charge handle having an extension with two attachment orifices corresponding to the metal block gas blocking restrictor mechanism orifices and is coincidentally attached to the bolt carrier. There is also a method of converting a AR-style semi-automatic rifle to a single shot rifle.

A production AR-style semi-automatic rifle (i.e. AR-15, AR-10, M-16, M-4, etc.) that has been converted to a single shot rifle includes: a) conventional rifle components, including a receiving trigger, trigger guard, barrel; b) a semi-automatic firing mechanism including a gas actuated casing ejection and bolt reset mechanism including a bolt carrier with two carrier gas key threaded receiving orifices and having no production carrier gas key and a having a dual-bored metal block gas blocking restrictor mechanism attached to the bolt carrier and positioned so as to inhibit\semi-automatic operation of the AR-style semi-automatic rifle by disabling the automatic gas actuated casing ejection and automatic gas actuated bolt reset functionality. In some embodiments, there is a modified charge handle having an extension with two attachment orifices corresponding to the metal block gas blocking restrictor mechanism orifices and is coincidentally attached to the bolt carrier. There is also a method of converting a AR-style semi-automatic rifle to a single shot rifle.