Trijicon is the proud manufacturer of the Army’s M150 Rifle Combat Optic (RCO) also known as the Advanced Combat Optical Gunsight (ACOG). The ACOG is a Full Mission Profile Optic designed specifically for Small Arms and Machine Guns. Our line of aiming systems include the ACOG, Variable Combat Optical Gunsight (VCOG), Machine Gun Optics (MGO’s), Reflex Sights, Ruggedized Miniature Reflex (RMR) sights, and NEW Miniature Rifle Optic (MRO).