FightLite MCR Dual Feed AR-15 Upper 5.56 NATO 16.25" Picatinny

The FightLite MCR (Mission Configurable Rifle) is a belt fed upper receiver assembly that drops onto any mil spec AR-15/M16 lower with no permanent changes to the lower, and it fits AR15/M16 lowers made as far back as 1963. The dual feed design takes standard AR-15/M16 box magazines or M27 linked 5.56 NATO at the shooter's choice, and the upper reconfigures in seconds without tools.

It runs a short stroke gas piston and a 16.25" quick change barrel with a 1:7 twist and 1/2-28 muzzle threads; a barrel change takes about three seconds. The upper receiver, feed cover and charging handle are machined from billet aluminum and the feed tray from billet steel. A 1913 Picatinny rail handguard carries optics and accessories. It comes with a full auto bolt carrier, adjustable sights, the barrel handle, main action spring, bolt catch, carbine stock spacer, 100 M27 links and the manual.