FightLite's groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward compatible to AR15/M16 models produced as early as 1963.
Specifications:
- Drop-On Upper Receiver Assembly
- Short-Stroke Gas Piston Operation
- Dual-Feed-Accepts All AR15/M16 Magazines & M27 Linked Ammunition
- Precision Machined 7075-T6 Billet Upper Receiver
- Full-Auto Bolt Carrier
- MIL-STD 1913 Rail at 12 o'clock M-Lok at 3, 6 & 9
- Ships with Main Action Spring, Bolt Catch, Carbine Stock Spacer, (100) M27 Links & Operator's Manual