RWS Lock Down Mount 1-inch. The RWS Lock Down Mount for airgun scopes locks on tight with its full-length 11mm rail frame and clamping bar, and remains locked in place with its optional dual-recoil pin locking system. The RWS Lock Down Mount installs with ease and keeps your airgun scope locked on target ensuring a consistent group shot after shot. Features: Integral "wrap-around" rings provide stress-free mounting. Dual recoil pin locking system. Full length clamping bar. One-piece = easy mounting. .025" elevation built into mount to overcome barrel. deflection in RWS Air Rifles. Made of high-grade aluminium. Installation tools included