US Patent 6931778 Clamp for weapon mount

A weapon mount for mounting a night vision device to the receiver rail of a weapon. A self-device adjusting cam operated connection device is present at one end region of the mount for attaching to the receiver rail, while the night vision device is connected at the other end region of the mount with a knob operated mounting screw. The knob and mounting screw are a one piece design and the mounting screw is captivated by an E-clip. The cam operated connection device may be adjusted to accommodate different size receiver rails by the provision of compressible means, such as Belleville washers.