Matte black anodized cnc machined 6061-t6 aluminum and steel construction.Staked and knurled thumb wheels can be tightened by hand in the field or by a flathead screw driver or m6 hex wrench (recommended torque value: 25 in-lbs).A2 dual aperture and 6/3 windage drum.Mil-std-1913 picatinny compatible squared recoil lugs for a secure zero hold and return to zero.Compatible with in-line rail mounted front sights and taller f-marked front sight bases

Finish: Anodized/Phosphate
Material: Aluminum/Steel