All steel construction; Steel, rectangular sight post selectable between Match and Standard widths; Case hardened and finished with Melonite QPQ for extreme resistance to wear and corrosion; Mounts on any MIL-STD-1913 Picatinny/STANAG 4694 rail including receiver-height gas blocks; Elevation adjustment knob - no tools required; Positive detents in both the up and down positions as well as on the elevation knob; Standard AR height over bore when deployed, 45 deg. offset right-hand side; Made in U.S.A.; Black Finish