AR-9 Standard 9mm BCG (Glock, Colt, and MP5 Compatible)


  • Manufacturer: New Frontier Armory
  • Model: AR-9 9mm Bolt Carrier Group – BCG (Glock & Colt Compatible)
  • Caliber: 9mm
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SKU: BCG-9 Category:



  • Manufacturer: New Frontier Armory
  • Model: AR-9 Standard 9mm BCG (Glock, Colt, and MP5 Compatible)
  • Caliber: 9mm
  • Weight: 14.3 oz


AR-9 Standard 9mm BCG (Glock, Colt, and MP5 Compatible)

  • US Made 8620 steel with nitride finish
  • Ramped carrier to work with both 9mm and standard AR hammers
  • Precision milled for use with Glock style, MP5 Style or traditional Colt style AR-9 lower receivers
  • M-16 cut for use in transferable full auto MG’s, dealer post sample MG’s or other legal machine guns (ALL BATFE RULES APPLY)

**NOTE:  Many Aftermarket drop in triggers use modified hammers which may not reset properly, or hit the firing pin square on the carrier which could cause firing pins to bind and snap.  We recommend using only MILSPEC hammers with any 9mm, .40, or .45 blowback bolt carrier groups.

The New Frontier Armory AR-9 9mm Bolt Carrier Group is proudly MADE IN THE USA by hard-working American men and women.


Additional information

Weight1.00 lbs
Dimensions7.25 × 1.5 × 1 in


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Questions and answers of the customers

  1. 0 votes

    If there are any modifications needed, then we can do them here with our gunsmithing service.  We would need the fire control group on hand to provide the work.

  2. 0 votes


  3. 0 votes

    Yes, the Thordsen stock should work. The Blitzkrieg buffer will work, they run great in competition builds and you will not need to use the buffer spacer.

  4. 0 votes
    Q Will this BCG work with a side charging C5 upper? answer now
    Asked by Josh on March 22, 2019 11:49 am


  5. 0 votes
    Q Can you use a JP silent capture spring? answer now
    Asked by Matthew Baker on March 22, 2019 4:32 am

    Yes, but we recommend adding in the AR-9 BCG adaptor also.

  6. 0 votes
    Q will this bcg work with a full auto fire control group? answer now
    Asked by mort dressler on February 1, 2019 2:37 pm
    Answered by the admin

    Yes, it will.

  7. 0 votes
    Answered by the admin

    Its compatible with Standard AR-15 parts.

  8. 0 votes
    Answered by the admin

    There are a lot of variables at play to troubleshoot your problem correctly.  Please use our contact us page to have one of our team members assist you with your problem.

  9. 0 votes
    Q Can you run a fostech trigger with this BCG ? answer now
    Asked by Stephen on December 8, 2018 6:20 pm
    Answered by the admin

    Not without modification.

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