Patent ID: 8459172
Filing Date: 2013-06-11
Classification: F41A

Abstract:
1. A trigger assembly fitted to a trigger housing that is adapted to engage a receiver for an M249 Assault Rifle, the receiver carrying an op rod assembly that reciprocates within the receiver to fire the rifle, the trigger assembly comprising: (a) a sear pivotally mounted to the trigger housing, the sear providing: (b) a sear spring biasing said sear to pivot to position said sear tip in the path of the op rod assembly when the trigger housing is engaged with the receiver and the trigger assembly is unactuated; (c) a trigger pivotally mounted to the trigger housing; (d) a disconnector pivotally connected to said trigger, said disconnector providing: (e) a select fire mechanism including: (f) a disconnector spring biasing said disconnector toward said sear and said selector body, wherein actuating the trigger assembly draws said ramped surface of said disconnector against said selector body and, when said switch is in said fully-automatic firing position, said ramped surface is drawn against said fully-automatic selector surface and, when said lever is moved to said semi-automatic firing position, said ramped surface is drawn against said semi-automatic selector surface, and wherein, when said ramped surface is drawn against said fully-automatic selector surface, said catch end of said disconnector engages said latch end of said sear and pulls thereon so as to pivot said sear tip out of the path of the op rod assembly and remain out of said path until said trigger is released, and, when said ramped surface is drawn against said semi-automatic selector surface, said catch end of said disconnector engages said latch end of said sear and pulls thereon so as to pivot said sear tip out of the path of the op rod assembly and thereafter disengages such that said sear pivots on said sear spring to again extend into the path of the op rod assembly after a single firing of the M249 Assault Rifle.