The MMO capitalizes on COTS optical technologies to provide a rugged, low-cost optic for the mounted Soldier in Combat Support and Combat Service Support formations. The MMO provides the mounted Soldier with the capability to engage targets at greater ranges with improved clarity and situational awareness. The MMO attaches to the host weapons using Mil-Std-1913 Picatinny rails. The MMO has three variants, one each for the M2/M2A1 (MMO XM155), M240B/H/L (MMO XM156), and the MK19 (MMO XM152).
The MMO is a large field of view, large eye relief, 1x glass optic with a quick change 4x magnified function. This provides mounted machine gunners the ability to maintain situational awareness while rapidly acquiring targets without the need for a strict alignment with the optic, as well as allowing for magnification for target identification purposes.