Semi-automatic rapid firing pistol with gas escape openings in the barrel wall

Abstract

Abstract A semi-automatic pistol having gas escape ports in the sides of the barrel wall immediately forward of the cartridge chamber, which ports permit gas to escape from the firing chamber. From these ports, the gas is conducted along a pair of elongated gas transfer passageways extending parallel to and disposed on either side of the barrel of the pistol. At the ends of the chambers opposite the aforementioned gas escape ports, and adjacent to the open end of the pistol barrel, these passageways terminate in gas exit ports open to the outside air, which ports extend upwardly and to either side at an acute angle to the vertical. The escape of gas from these ports by reaction tends to force the open end of the pistol barrel downwardly and thus counteracts the tendency of the barrel to move upwardly and to the left upon firing. The tubular members forming the gas passageways are embedded in the pistol stock adjacent the firing chamber, and are retained therein by an annular jacket or cover which, in turn, is retained by a threaded retaining nut screwed into the end of the pistol barrel.

Inventors

• 👤 Edwin Rohr

Bibliographic Details