A rail clamp mount that may be quickly and easily firmly secured to a rail, such as a rail carried by a gun, and that may be quickly and easily released from the rail. A preferred embodiment comprises a mount base including a first rail-engaging surface; a generally U-shaped, somewhat elastic clamping...http://www.google.ca/patents/US7941960?utm_source=gb-gplus-sharePatent US7941960 - Rail clamp mount