Drop On (MIL Spec) Upper Receiver Assembly that upgrades your AR15/M16/M4 type lower receivers or rifles.

• 5.56 x 45mm NATO 16.25” or 12.5" 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 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 or MLOK
• Adjustable Sight Set
• Quick Change Barrel Handle

Includes:

• 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