16-inch M4 Contour Barrel with 1:8 Twist, Chambered in 5.56/.223, Parkerized Finish, Carbine Gas System Front Sight Base installed, Plastic A2 hand guards. Gas block is railed to allow the end user to install their front sight of choice.
Note: This upper does not have a charging handle or BCG
Detail Information:
• Upper Receiver Material: Forged 7075 T6 Aluminum
• Receiver Finish: Type 3 Hard Anodized, Black
• Barrel Material: 4150 Chrome Moly Vanadium
• Barrel Length: 16 inch
• Barrel Contour: M4 Contour
• Gas System Length: Carbine Length
• Charging Handle: NOT Included
• Bolt Carrier Group: NOT Included
• Handguard: A2 Plastic Hand Guard