FightLite Mission Configurable Rifle Features The FightLite Mission Configurable Rifle upper can be user-configured in seconds without tools to adapt to virtually any mission profile letting shooters switch between belt-fed and magazine-fed operation on the same host lower. Its quick-change 16.25 inch barrel swaps in around three seconds and the chrome-lined bore and chamber resist wear from sustained firing while a 1:7 twist stabilizes standard military 5.56 NATO ammunition. A 6-lug rotating bolt is more robust than a standard AR-15 bolt and is purpose-built for sustained-fire roles backed by a full-auto rated bolt carrier for reliable cycling. The upper utilizes M249 SAW-pattern links and its half-inch-28 muzzle accepts standard muzzle devices. Machined from 7075-T6 billet aluminum the receiver carries a Type III matte Black anodized finish for durability and corrosion resistance across repeated use. A Picatinny rail runs along the top cover for mounting optics while an additional Picatinny handguard provides accessory mounting space along the forend. The complete upper weighs 7.45 lbs with an overall length of 32.25 inches and it ships with 100 M27-pattern links to get shooters running belt-fed ammunition right away. For AR-15 and M16 owners who want to add genuine belt-fed capability without buying a whole new rifle the MCR upper is available for sale at GrabAGun. FightLite Industries Mission Configurable Rifle Specifications Brand: FightLite Model: Mission Configurable Rifle Type: Complete Upper Receiver Caliber: 5.56 Barrel Length: 16.25 Twist Rate: 1:7 Handguard: M-LOK / Picatinny Receiver Material: 7075-T6 Aluminum Finish: Matte Black Anodized Included: 100 M27 Links Thread Pattern: 1/2x28 Weight: 7.45 lbs Available At: GrabAGun