This comes with the Bolt Carrier Group and Charging Handle.

• Mil-spec certified 4150 chrome-moly vanadium steel M4 contour barrel
• 5.56x45 NATO chamber
• 1/7 twist
• Hard chrome lined chamber and bore
• M4 feed ramps
• 11 degree recessed target crown
• F marked forged front sight base
• Parkerized Barrel including under the front sight base
• A2 Flash hider installed with Peel washer
• Forged A3 upper receivers are T marked and have extended feed ramp cuts (M4 ramps).
• Semi Auto bolt carrier

• Caliber: .223Rem or 5.56 NATO
• Barrel Length: 16"
• Finish: Black
• Accessories: BCG and Charging Handle
• Twist Rate: 1/9
• Chamber: WASP
• Description: Flat Top