FailZero M16/M4 Bolt Carrier Group No Hammer Matte 5.56 NATO

The FailZero M16/M4 No Hammer is a bolt carrier group for AR-15 rifles, built to cycle the action and lock the bolt during firing. It is designed for shooters who want a replacement or upgrade carrier for a standard M16 or M4 style rifle.

The carrier is made from 8620 steel and fitted with a steel bolt. The exterior has a matte black Nickel Boron (EXO) finish. The group is chambered for 223 Remington and 5.56x45mm NATO ammunition and fits Mil-Spec M16/M4 AR-15 upper receivers.

• Type: Bolt Carrier Group
• Platform: AR-15
• Calibers: 223 Remington, 5.56x45mm NATO
• Fits: Mil-Spec M16/M4 AR-15 upper receivers
• Material: 8620 Steel carrier, steel bolt
• Finish: Nickel Boron (EXO), Matte
• Color: Black
• Model: M16/M4 No Hammer