Patent ID: 8683732

Claim:
A clamping mechanism for securing mounts to a Weaver or Picatinny style rail where the rail includes a plurality of upwardly facing mounting projections each having a flat top surface, opposed first and second angulated side surfaces, the mechanism comprising: a base member having a rail receiving opening defined by a flat bottom contact surface and an angulated contact surface, the base also having an angulated clamping surface; a clamping member having opposed first and second ends thereof; and means for connecting the clamping member against the base member in a force transmitting locking engagement at an angle with respect to the bottom contact surface to secure the rail between the base member and the clamping member so that one of the first and second ends of the clamping member abuts the clamping surface and the other of the first and second ends of the clamping member abuts one of the opposed first and second angulated side surfaces of the rail, thereby drawing the angulated contact surface of the base member forceably pressing against the other angulated side surface of the rail and the bottom contact surface of the base member forceably pressing against the top surface of the rail.