AR-15 Low Mass Bolt Carrier, Black Nitride

AR-15 Low Mass Bolt Carrier, Black Nitride

$249.99 $164.99

Order# BG556

Order# BG556

Want a lighter, faster, and more manageable rifle? The Low Mass Bolt Carrier is where you start.

Packing exceptional performance in a lightweight — but full-power package — This Low-Mass Bolt Carrier Group (BCG) was designed 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 under 8.9 ounces. Its black nitride finish enhances strength and reduces friction for improved performance.

  • Precision manufactured
  • Individually inspected to ensure high-level performance
  • Strong, easy-to-clean black nitride finish
  • Compatible with lighter buffers to allow faster follow-up shots
  • Individually MPI tested
  • Bolt: 9310 MPI tested
  • Carrier: 8620 tool steel heat treated and case hardened
  • Gas key: tool steel – grade 8 hardened fasteners and staked properly
  • Cam pin: 4140 steel
  • Extractor: tool steel – shot-peened
  • Lightweight — only 8.9 oz.


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CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemical(s) known to the state of California to cause cancer, birth defects or other reproductive harm. For more information go to