You can find the Rise Armament Low-Mass Bolt Carrier Group Nickel Boron.223/5.56 here Fast $9.95 shipping! Orders over $200 ship for free!
The Rise Armament Low-Mass Bolt Carrier Group provides exceptional performance in a lightweight package. The reduced reciprocating mass lessens recoil and helps you stay on target for better accuracy. The Low-Mass Bolt Carrier Group weighs just less than 8.9 ounces. The nickel boron finish reduces friction, improves overall performance, and makes it easier to clean.
Caliber: .223/5.56
Finish: Nickel Boron (NIB)
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