The Burris P.E.P.R. mount has become the absolute go-to mount of choice for an incredibly solid long-lasting cantilever mount.Providing the necessary clearance and adding as much as 2 inches of forward scope positioning. It also ensures proper eye placement -- in fact P.E.P.R. stands for "Proper Eye Position Ready" (although it's easier to just say PEPPER MOUNT). The PEPR Mount is a perfect AR or flattop mounting solution. 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