Q&A for DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG)

DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG)

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Richard Roderick, member, from OH, United States, asked on April 29, 2021

Would this BCG work with a .300 blackout set up?

Answered by Ed, member, from OR, United States, on August 16, 2021

YES this will work for any caliber that has the same size base as the .223, or 5.56X45 military rounds

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Matthew, guest, from VA, United States, asked on December 04, 2022

Will this work on a Ar-9 ?

Expert Answer

Answered by Ethan, Gear Expert, from IL, United States, on December 07, 2022

The DoubleStar M-16 Full-Auto Bolt Carrier Group is not compatible with an AR-9. Email us at Techsales@opricsplanet.com and let us know what AR9 you have (Brand, model, mag compatibility etc). That way we can more easily recommend a compatible BCG for your build.

1 of 1 found the following answer helpful.

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H A, member, from TN, United States, asked on January 21, 2021

will this bolt work in all ar-15 .223/5.56

Answered by Twostroke, member, from LA, United States, on January 06, 2022

Not for lefty uppers so no. �

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Mr. Curious, member, from WA, United States, asked on August 10, 2020

Will this bcg fit any standard Ar15 upper

Answered by Ed, member, from OR, United States, on August 16, 2021

Yea this will fit all AR-15 upper receivers

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Fitz, guest, from CA, United States, asked on January 10, 2018

Is this bolt carrier group compatible with glock magazine

Expert Answer

Answered by Ethan C., Gear Expert, from IL, United States, on March 22, 2019

No, this will not work with pistol calibers, this is for 5.56/.223 and similar casing calibers.

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Kevin, member, from AZ, United States, asked on June 27, 2026

Is the firing pin shrouded?

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Q&A for DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG) — 6 Questions & 6 Answers

Would this BCG work with a .300 blackout set up?

Will this work on a Ar-9 ?

will this bolt work in all ar-15 .223/5.56

Will this bcg fit any standard Ar15 upper

Is this bolt carrier group compatible with glock magazine

Is the firing pin shrouded?

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More Deals

Q&A for DoubleStar M-16 Full-Auto Bolt Carrier Group (BCG) — 6 Questions & 6 Answers

Would this BCG work with a .300 blackout set up?

Will this work on a Ar-9 ?

will this bolt work in all ar-15 .223/5.56

Will this bcg fit any standard Ar15 upper

Is this bolt carrier group compatible with glock magazine

Is the firing pin shrouded?