Complete upper receiver with colt carrier group and charging handle:

• M4 parkerized 4150 chrome vanadium barrel, chambered in 5.56 with a 1:8 twist
• Birdcage flash hider
• Carbine length gas system
• 15" m-lok handguard
• Flat-top mil-spec upper receiver with installed dust cover and forward assist
• Black Nitride Bolt Carrier Group
• Mil-spec standard charging handle

Mate this to your complete mil-spec lower receiver. Install some sights and go shoot.

Barrel Length

16,

Fit

AR-15,