Patent ID: 8757043
Filing Date: 2014-06-24
Classification: F41A

Abstract:
1. An arm assembly for a firearm, the arm assembly comprising: a) an arm, the arm having a pintle housing, said pintle housing having an interior comprising a socket and an exterior; b) a pintle disposed in said socket, said pintle having a groove that extends around said pintle at a first pintle height, and a plurality of substantially circular recesses disposed about said pintle at a second pintle height; c) a rotatable adjustment knob attached to said pintle housing and rotatable relative to said pintle housing; and d) a moveable collar comprising a tongue, said moveable collar operably connected to said adjustment knob, wherein rotation of said adjustment knob causes said tongue to engage said groove in said pintle and inhibit said pintle from rotating in and retracting from said socket.