Abstract: An improved semi-automatic shotgun of the type contains a magazine tube (8) around which is provided a cylinder (9) whose interior part communicates with an interior part of a barrel (2) of the invention. In this cylinder (9) and around the magazine tube (8), a piston (10) can be shifted by propulsion gases. The piston cooperates with a sleeve (12) provided with a rod (13) which can act upon the whole of the moving parts (14) on the one hand, and a control or pressure control valve (11) on the other hand is situated in the piston block (10).
Type:
Grant
Filed:
July 15, 1994
Date of Patent:
July 4, 1995
Assignee:
Browning S.A. societe anonyme
Inventors:
Joseph A. Badali, Joseph F. N. Rousseau