Fightlite MCR Dual-Feed Upper MLOK 12.5in Dry Film - MCR-556-DFRS - Picatinny

Drop-On (MIL-Spec) Upper Receiver Assembly that upgrades your AR15/M16/M4 type lower receivers or rifles
5.56 x 45mm NATO
12.5” Quick-Change Barrel
1:7” RHT, ½”-28 TPI 
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 for Maximum Corrosion and Wear Resistance
Dry Film Lubricant Applied to Critical High-Friction Surfaces
Full-Auto Bolt Carrier 
Handguard Style – MIL-STD 1913 Rail 
Adjustable Sight Set
Quick-Change Barrel Handle
Ships with Belt-Feed Main Action Spring, MIL-Spec H3 Buffer, Carbine Stock Spacer, Extended Bolt Catch, Mag Adapter, RipBrake Muzzle Compensator, (100) M27 Links & Operator’s Manual
Made In USA