Rise Armament Low-Mass BCG Nickel Boron .223/5.56

The RISE Armament Low-Mass Bolt Carrier Group is a replacement bolt carrier group for AR-15 rifles chambered in .223 Remington or 5.56x45mm NATO. It is built from steel and finished in nickel boron, and is intended for competition shooting and lightweight builds where reduced reciprocating mass is a priority.

The carrier weighs 8.9 ounces. The nickel boron finish is described as offering corrosion resistance and easier cleaning. The product is also presented as a way to reduce wear on internal components, though this is the manufacturer's stated benefit rather than a verified measurement.

This carrier is listed for the AR-15 platform only and is sold as a bolt carrier group for the AR-15 pattern rifle. Confirm fit against your receiver and bolt before installation.

• Manufacturer: RISE Armament
• Model: Low-Mass Bolt Carrier Group
• Platform: AR-15
• Calibers: .223 Remington, 5.56x45mm NATO
• Material: Steel
• Finish: Nickel Boron
• Weight: 8.9 oz
• Color: Silver