American Defense Mfg., AD-Recon-SL Scope Mount, Dual Quick Detach, Vertical Spit Rings, 30MM, Low Height This mount from ADM is designed for putting high power glass onto a flattop style AR or a bolt action rifle. The AD-Recon-SL is a straight up scope mount with no eye relief built into the mount. It is precision machined from 6061 T6 aluminum and finished in hard coat type III mil-spec anodizing. It features the QD auto lock lever system and is designed for maximum surface area contact with picatinny rail systems. Specifications and Features: American Defense MFG AD-RECON-SL-30 30mm Scope tube diameter 1.110" centerline to top of rail Does not require proprietary tools for adjustment Can be adjusted with finger or flat head screwdriver Lever can be configured to lock to either the front or the rear Superior clamping surface to insure maximum rail engagement 6061 T6 Aluminum Type III hard coat anodized QD auto lock system Made in the USA Weighs 8.50 ounces Black