METHOD FOR CONNECTION OF RECEIVER TO HINGE PIN OF SPORTING GUN WITH DETACHABLE BARRELS Russian patent published in 2001 - IPC

FIELD: weaponry. SUBSTANCE: made coaxially with the through hole in the box in the hinge pin is a blind hole, whose diameter is larger than the diameter of the hole in the box, placed in both holes up to the stop is a pin, whose length is selected from the following condition: l_p≅l_th+0,52d, where l_p - pin length; l_th - length of the through hole in the box; d-pin diameter, and the pin is influenced by pressure, for example, by pressing or a shock, and a closing head is formed in the volume of the blind hole. EFFECT: enhanced reliability of operation in the process of firing. 3 cl, 2 dwg