Fail Zero AR-15 Bolt Carrier Group w/o Hammer

Questions & Answers

• Q: Will this fire .223 and .556 rounds?

  • Answered
  • Asked 03/05/2020 17:45 by Esequiel C

  A:

  Esequiel, yes Sir. This is a 5.56NATO Bolt and will fire both 5.56 and .223 no issues. Cheers!

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• Q: Will this BCG fit in a 7.62x39 ar 15?

  • Answered
  • Asked 08/13/2019 16:06 by Pete C

  A:

  Pete, it will Sir.

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• Q: Can I use this bolt carrier to build a 9mm AR pistol?

  • Answered
  • Asked 03/02/2019 05:30 by Michael C

  A:

  sorry this BCG will not work with 9MM you will need a 9MM specific BCG like this PSA Gen4 9mm BCG - Nitride - 5165449845

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• Q: Is this drop in and go or will I have to adjust or take it to a gun Smith to make it fit properly?

  • Answered
  • Asked 02/16/2019 01:55 by Gavin R

  A:

  While it is considered a drop in part it’s always a good idea to check head space anytime you change the barrel or bolt.

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