All steel construction; Case hardened and finished with Melonite for extreme resistance to wear and corrosion; Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail; Windage adjustable with low-profile knob - no tools required; Elevation adjustment wheel for 200-600 meter distances in 50 meter increments; Positive detents in both the up and down positions; Standard AR sight height when deployed; Made in U.S.A.; Black Finish