Rise Armament RA1010NIB Low-Mass Bolt Carrier Group 5.56x45mm NATO Nickel Boron Steel for AR-15 Lights or just looking to improve

or just looking to improve skills for personal defense

Equipped with a strong Tri-Ad locking mechanism for safety

7 X 28FN to the largest magnums

Fits eyepiece that is between 36mm and 58mm

Rise Armament RA1010NIB Low-Mass Bolt Carrier Group 5.56x45mm NATO Nickel Boron Steel for AR-15 Lights or just looking to improvePacking exceptional performance in a lightweight but full power package RISE Armament designed the RA 1010 Low Mass Bolt Carrier Group (BCG) to help you shoot more accurately. With a reduced reciprocating mass during the firing cycle, it lessens recoil and helps you stay on target. The complete BCG weighs in at just less than 8. 9 ounces.