The Sightmark Tactical Cantilever 34mm Fixed/LQD/Fixed w/ 20MOA Mount is constructed out of aircraft-grade 6061-T6 aluminum for a durable body with a matte black and non-reflective coating. The 2-inch offset allows for an improved eye relief on an AR-15 while designed to fit Picatinny rails. Included in Package Allen Key Hex Key Torx Key Features Made from durable 6061-T6 aluminum Matte black - non-reflective finish 2 inch forward offset Fits 34mm riflescope tubes 6061-T6 aluminum body Fits Picatinny rails fixed mount w/20MOA 34mm ring 20 MOA built-in slope LQD mount