Sightmark's 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. Features: Made from durable 6061-T6 aluminumMatte black - non-reflective finish2 inch forward offsetFits 34mm riflescope tubes6061-T6 aluminum bodyFits Picatinny railsFixed mount w/20MOA34mm ring20 MOA built-in slopeLQD mount Sightmark Tactical 34mm Fixed Cantilever Mount SM34022