Abstract: A locking mechanism comprises a housing, a shaft extending in the housing and having a latch member thereon adjacent to one end thereof, and an actuating lever adjacent to an opposite end of a shaft. The shaft, actuating lever, and housing are interconnected in a manner that causes the shaft to move longitudinally in response to turning of the actuating lever to a predetermined extent from a rest position, so that the latch member moves from a first position to a second position, and for causing the shaft to tilt in response to continued turning of the actuating lever, so that the latch member is turned away from the second position.

Abstract: A lock for a firearm that includes two locking elements located on either side of the trigger guard. One of the locking elements contains a plug-in unit and the other of the locking elements contains a receiver in mating contact with the plug-in unit via a meshing toothed arrangement. A handle attached to the plug-in unit rotates 90 degrees to unmate the toothed arrangement. Rotation of the handle by 90 degrees after a combination lock located in the handle is unlocked results unmating of the toothed arrangement.