Aero Precision's Ultralight Scope Mount are the ideal way to mount a high end optic on your AR.Constructed from rigid 6061-T6 extruded aluminum with cross-slot keyways to give you great recoil protection on your picatinny rail your optic becomes one with the gun.Trimmed of unnecessary bulk and engineered for strength the Ultralight Scope Mount is one of the strongest and lightest mounts in the industry. The extended ring position pushes the rear ring forward 1" allowing for better eye relief.Features / SpecsAero Precision APRA210400Ultralight 1" Scope MountExtended Ring Position1" Tube DiameterPicatinny Mount6061-T6 AluminumBlackWeight 3.07 ozFitsStandard AR-15 Flat Top Upper ReceiversMil-Spec 1913 Picatinny Rails