Trijicon | ACOG MGO | Black

The ACOG MGO (Machine Gun Optic) is Trijicon's ACOG line built specifically for crew‑served weapons rather than rifles -⁠- the same battery‑free tritium/​fiber‑optic dual illumination and bullet‑drop‑compensating reticle as a standard ACOG, but housed to handle the far harder recoil impulse of a mounted machine gun and tested against U.S. military drop requirements. A dry nitrogen‑filled housing keeps it from fogging, and the BDC reticle is calibrated to the specific host gun's ballistics rather than a rifle's.