Burris 410342 AR-P.E.P.R Scope Mount/Ring Combo Matte Black 30 mm Quick DetachThe 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). Quick detach model.