Burris Optics is a trusted source of binoculars, scopes, sights, reticles, and mounting systems for all hunting, tactical, and competitive shooting needs. FEATURES: Burris AR PEPR Mount 30mm 410342 The new AR-P.E.P.R. QD Mount makes it easy to gear up for different applications or shooting disciplines. Two Quick Detach levers make it easy to change optics or switch to iron sights and still maintain return-to-zero reliability. Full ring and base mounting solution in one Allows up to 2 inches of forward scope positioning Provides optimum eye relief and full field of view Includes both smooth and Picatinny ring tops Available in 1 inch, 30 mm and 34 mm sizes. Quick-detach models are available in 1 inch and 30 mm sizes. 34mm size is designed with 20 MOA of built-in cant