Patent ID: 6931778

Claim:
A connection device for attaching to a receiver rail of a weapon, which receiver rail has a top surface and opposite side surfaces, comprising; a base surface and first and second side members for engaging in an operative position said surfaces of the receiver rail, wherein the base surface is for engaging the top surface of the receiver rail and the first side member is stationary and is for engaging one of the side surfaces of the receiver rail and the second side member is movable between an extended position where it does not securely engage the opposite side surface of the receiver rail and said operative position where it is retracted and securely engages said opposite side surface of the receiver rail, the second side member being part of a clamp which is connected to a bolt having an axial direction, wherein the clamp is pushed and pulled between said extended and retracted positions by pushing and pulling the bolt, and a cam which is rotatable in a plane in which said axial direction of said bolt lies for pushing and pulling the bolt.