The FightLite Industries MCR Belt Fed AR-15 Upper Receiver allows you to convert your AR-15 from a standard, magazine fed rifle, into a multi-purpose belt-fed, that can also feed from a magazine. Simply attach the upper as you would any other, link up your ammunition and go to the range. This unique upper receiver includes a Picatinny rail mounted to the top cover, as well as Picatinny handguards. 16.25” quick change barrel features a chrome lined bore & chamber. 1-7 twist stabilizes standard, military ammunition, and ½-28 muzzle accepts standard muzzle devices. Receiver is machined from 7075-T6 billet & features a Type III matte black anodized finish. 6-lug rotating bolt is more robust than a standard AR-15 bolt, and is designed for sustained fire roles. Feed tray is steel. Bolt carrier is semi-auto. Upper utilizes M249 SAW links. Upper weighs 7.45 lbs & has an OAL of 32.25”.