| 摘要 |
A recoil system for the receiver of the firearm having an extension spring recoil assembly that is incorporated into a butt stock assembly. The butt stock assembly has an elongated receiver member and an elongated gun stock sleeve member. The front end of the extension spring recoil assembly is rigidly connected within the rear end of the receiver attachment member. The gun stock sleeve member has a front bore hole extending rearwardly most of its length and the rear end of the extension spring recoil assembly resides therein. The extension spring recoil assembly has an outer tubular member and inner tubular that is telescopically received therein. An elongated extension coil spring is positioned within the inner tubular member and has its forward end rigidly secured therein. The rear end of the extension coil spring is rigidly attached to the rear end of the outer tubular member. When the firearm is fired, recoil passes from the receiver rearwardly through the receiver attachment member causing the outer tubular member to travel rearwardly and stretch the extension spring thereby absorbing most of the recoil. As the recoil dissipates, the extension spring contracts causing the outer tubular member and receive attachment member to travel forwardly. The extension spring recoil assembly can also be used in conjunction with a pistol grip recoil assembly that itself is connected to the rear end of the receiver. One of the embodiments allows the butt stock assembly to be rotated into a horizontal position. |
