The FightLite Industries MCR Belt Fed AR-15/M16 Upper Receiver allows you to convert your AR-15 or M16 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 a Picatinny handguard. 16.25" quick change barrel features a chrome lined bore & chamber. 1-7 twist stabilizes standard, military ammunition, A 1/2-28 muzzle accepts standard muzzle devices and 100 links. Receiver is machined from 7075-T6 billet & features a Type III matte black anodized f Mfg: Fightlite Industries