FightLite Industries’ MCR-060 claims to be the lightest belt-fed upper receiver assembly, and it’s also simple to use. The MCR (Mission Configurable Rifle) will fit any AR15, M16, or M4 lower receiver. It’s chambered for 5.56 x 45mm NATO rounds. It is compatible with all AR15 and M16 magazines as well as M27 linked ammunition–but maybe not at the same time.
Are you worried that the 16.25″, 1:7 righthand twist chrome lined barrel with 1/2″-28 threading can’t take the heat generated from belt-feeding this gas piston-driven little monster? Don’t sweat it: you can swap out the barrel in as little as 3 seconds so you’ll have minimal interruption to your shooting spree.
The receiver is precision milled from a billet of 7075-T6 aluminum, as are the feed cover and charging handle. The feed tray is milled from a solid billet of steel. This upper is solid and made to last.
The MCR-060 upper costs $4,414.
But, there’s also the MCR-060S. This Short version drops the barrel to just 12.5 inches but keeps all the other features, as well as the same price.
The MCR-060 comes with iron sights and rails ready for optics, but you don’t want the included iron sights, the MCR-036 and MCR-036S ship with the rails only and cost just $3,822.
If you don’t have an empty lower laying around to drop this bad boy onto, FightLite Industries would be happy to supply you a complete MCR-100 for $5,260, which weighs in at just 9.75 pounds.
Check out FightLite’s MCR-060 upper receiver right here, and check out the complete feature list below.
- Drop-On Upper Receiver Assembly that upgrades your AR15/M16/M4 type lower receivers or rifles
- 5.56 x 45mm NATO
- 16.25” Quick-Change Barrel
- 1:7” RHT, ½”-28 TPI & Chrome-Lined Barrel
- Short-Stroke Gas Piston Operation
- Dual Feed – Accepts ALL AR15/M16 Magazines & M27 Linked Ammunition
- Precision Machined 7075-T6 Billet Upper Receiver, Feed Cover and Charging Handle
- Precision Machined Billet Steel Feed Tray
- Finish – Manganese Phosphate & Type III, Class 2 Hardcoat anodize – Black
- Full-Auto Bolt Carrier
- Handguard Style – MIL-STD 1913 Rail
- Adjustable Sight Set
- Quick-Change Barrel Handle
- Ships with Main Action Spring, Bolt Catch, Carbine Stock Spacer, (100) M27 Links & Operator’s Manual
- Made In USA