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Would it work with a stern defense mag adapter ? So u could use glock mags instead of arc from cmmg — 2 Answers

by S M, from FL, United States Asked on January 1, 2020

Name CMMG, Inc BANSHEE 300 Series Upper Receiver Group (5)
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Answered by Armando R., Gear Expert, from IL, United States, on March 06, 2020

No, it will only work with the full size AR magazines that have been converted to 9mm.

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Answered by mmp, member, from MD, United States, on February 09, 2020

I discovered the hard way that no, this cmmg upper will not with the stern defense ad9. You would have to mill parts of your BCG off and that is not recommended.

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