Material Construction: Light Weight, Aerospace Grade Metal. Designed to provide a solid mounting platform with multiple adjustment pointS. Accommodates AN/PVS-7A, AN/PVS-7C (Direct Mount) AN/PVS-7B, AN/PVS-14, AN/PVS-15, AN/PVS-18, AN/PVS-21, BNVD, BNVD-G (w/ Wilcox Interface Shoe). Breakaway Feature allows Mount to Break Away under Stress, or to Securely Lock in Place by Means of a Breakaway Lever. Lock Release Lever allows NVG height to be easily adjusted up or down, then secured. A Mount Release Lever allows the operator to easily set the desirable mode (breakaway or locked), ...