Patent ID: 9222742
Filing Date: 2015-12-29
Classification: F41A,Y10T

Abstract:
1. Locking element configured to be inserted into a cartridge chamber of a firearm, said locking element being provided with a proximal end and a distal end, the locking element comprising: an outer sleeve with a movable operating element provided therein, wherein the sleeve comprises a diameter such that the locking element is snugly insertable into the cartridge chamber from a cartridge chamber side, said diameter being larger than a diameter of a barrel of the firearm, and the operating element projects partly beyond the sleeve at the distal end such that the operating element is accessible from a muzzle side of the barrel when the locking element is located in the cartridge chamber, at least one spherical blocking element provided within the outer sleeve, wherein the operating element is formed and provided such that when the locking element is inserted with the distal end first into the cartridge chamber the operating element is moved within and relative to the sleeve to a distal direction, such that the at least one spherical blocking element moves in a retracted state, wherein the operating element is biased by a spring element to a proximal direction such that when the operating element is moved within the sleeve to the direction of the proximal end, the operating element causes the at least one spherical blocking element to be urged radially outwardly and pressed against the wall of the cartridge chamber thus blocking the cartridge chamber, wherein the at least one spherical blocking element is pressed further against the wall of the cartridge chamber if external pressure is applied from the distal end to the operating element, and wherein an outside surface of the distal end of the sleeve comprises a shoulder portion configured to abut against a junction between the cartridge chamber and the barrel, said shoulder portion having a conical angle which is substantially equal to an angle of the junction.