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2A Armament Lightweight Bolt Carrier

  • The 2A Armament Lightweight Bolt Carrier (LBC) is a lightweight carrier solution for those looking to reduce both felt recoil, and over all weight of the AR-15 pattern rifle. The LBC combines a very high quality forward body and an advanced bearing surface aluminum tail to give the shooter a reliable, lightweight, and high quality bolt carrier group. The advanced finned design of the tail section of the LBC reduces drag and wear within the receiver extension which increases reliability. The LBC is intended for rifles equipped with an adjustable gas system.

     NOTE: Does not support the use of forward assist.  Not compatible with full auto systems


    • Carrier: 8620 steel, heat treated, QPQ Nitride
    • Bolt:  9310 steel, heat treated, MP, Cryo'd, QPQ Nitride
    • Rear body:  7075-T6, hard anodized clear
    • Extractor: machined, heat treated, QPQ Nitride
    • Carrier key: machined, heat treated, QPQ Nitride, staked screws
    • Weight: 7.9oz assembled
    • Product of the great state of Idaho, MADE IN THE U.S.A.
  • The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible.
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  • No questions have been submitted regarding this product. If you have a question regarding this, or any of our other products, please submit them by emailing We will return your email promptly and post both the question and answer here for our other customers to view. Remember, there are no dumb questions... Thank you, MSR Arms!

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