Patent ID: 7938055
Filing Date: 2011-05-10
Classification: F41A,F41C,F41G,Y10T

Abstract:
1. A semi-automatic or automatic rifle comprising: a receiver having an integral hand guard portion; a barrel removably connected to the receiver, the hand guard portion extending over and surrounding the barrel; a removable accessory device mounting rail removably connected to the receiver and having another hand guard portion mateable with the integral hand guard portion of the receiver; and a quick release lock mounted to at least one of the removable mounting rail or the receiver for locking the removable mounting rail to the receiver; wherein the quick release lock has a movable locking member movable between a locked and unlocked positions, wherein when in the locked position the locking member locks the removable mounting rail in an installed position to the receiver, and when the locking member is in the unlocked position, the mounting rail is unlocked and freely movable relative to the receiver, wherein the locking member has an angled engagement portion protruding from the removable mounting rail and engaging a corresponding angled recess in the receiver, wherein the locking member acts as a wedge in the recess with the removable accessory device mounting rail preloaded with a biasing force against the integral hand guard portion.