The American Rifle Company M-Brace Scope Mount is the ultimate scope mounting system, derived from a first principle approach to defining and solving the problem of securely attaching high precision optical devices to a high precision rifle. The M-Brace features a serrated accessory interface, effortless anti-cant scope installation, and has a recoil proof non-marring scope grip. Features Serrated accessory interface Effortless anti-cant scope installation Recoil proof non-marring scope grip Useful level vial Excellent return-to-zero Designed to fit picatinny rails