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These have an all-chrome carrier key.
Individually test-fired and QC’d. 


(60 customer reviews)

Out of stock

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Made in the USA

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Hodge Defense Systems bolt carrier groups are no frills, black nitrided bolt carrier groups with a 9310 bolt. When manufactured and heat treated correctly, 9310 is slightly stronger than Carpenter 158 bolts.

HDSI BCGs feature an all chrome gas key, are Magnetic Particle Inspected (MPI), properly staked, individually inspected for quality assurance and individually test fired.

Additional information

Weight 24 oz
Dimensions 6 × 3 × 1 in

60 reviews for HODGE DEFENSE AR15/M4 BOLT CARRIER GROUP-Chrome Carrier Key

  1. PatrioticAlpaca (verified owner)

    Typical Hodge quality, built like a tank, will outlast 99.9% all other BCGs on the market. Everything about it is peak flex, with the exception that this BCG does not utilize OCKS for the gas key. To me, this is a very curious omission, as competing BCGs at this price point include OCKS on their gas keys, and to be honest, is pretty much the standard these days on high tier BCGs. Nevertheless, while this BCG doesn’t utilize OCKS, the bolts are properly staked, and I have no doubt in my mind that this BCG will far outlive me. Buy and use with confidence!

  2. edsafaryan79 (verified owner)

    After many trials and tribulations (due to USPS being USPS), I finally got this BCG, it is fantastic, as expected.

  3. timeckelkamp-4157 (verified owner)

    Great purchase, no complaints.

  4. Matt Minor (verified owner)


  5. August Hager (verified owner)

    Great product, great tool.

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