Rise Armament RA1010NIB Low-Mass BCG 5.56x45mm NATO Nickel Boron

The Rise Armament RA1010NIB Low-Mass Bolt Carrier Group is built for AR-15 platforms and optimized for 5.56x45mm NATO use. Engineered with reduced reciprocating mass, it is intended to minimize recoil impulse and support quicker follow-up handling. Constructed from steel with a nickel boron finish, the BCG is designed for reliable function and simplified maintenance. The complete unit is specified at just under 8.9 ounces, offering a lighter operating mass than standard full-weight carriers.

Key Specifications

• The model is RA1010NIB Low-Mass Bolt Carrier Group.
• Product type is Bolt Carrier Group.
• Designed for 5.56x45mm NATO compatibility in AR-15 platforms.
• Intended for use with AR-15 style rifles.
• Constructed from steel for durability.
• Finished with nickel boron for reduced friction and easier cleaning.
• Color is silver.
• The complete BCG weighs just under 8.9 ounces.
• Features a reduced reciprocating mass to aid follow-up shots and controllability.

Whether you are building a lighter AR-15 or upgrading an existing component, the RA1010NIB offers a practical balance of reduced operating mass, durable steel construction, and a low-friction nickel boron finish to simplify maintenance and support consistent function.