The Spuhr QDP Mount is an extremely sturdy one-piece scope mount that clamps directly to any MIL-STD 1913 Picatinny receiver rail or base. It combines the rock-solid stability of Spuhr's proven Ideal Scope Mounting System (ISMS) with easy-to-operate quick-release levers that let you attach and remove the Spuhr QDP Mount from your rifle with the mount and the scope as a single unit. The Spuhr QDP Mount has 45-degree split rings designed so the bulkiest part of the rings is not in your line of sight of the scope turrets. Another innovation is a bubble level built into the base to help you make sure the rifle is perfectly level, helping you control another important variable in lo Mfg: Spuhr