XM15 3-Gun Enhanced Carbine
Designed for 3-Gun competition, with crimson anodized upper and lower receiver, 16-in. mid-length stainless barrel, 15-in. carbon-fiber free-float tube, Rolling Thunder compensator and Timney trigger. Other features include Boron nitride bolt carrier group, Bravo Company charging handle, ambidextrous selector switch, Magpul MIAD grip and MOE stock. Introduced in 2014.