What aftermarket mags work with a Ruger AR 556 chambered with 300 aac blackout mag serial number 90526

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Neil S. · Answer

Most all should work fine. Good luck

James G. · Answer

Hi Alex, I have use HEX and Mission First Magazines in 300BLK no issue  :  https://www.righttobear.com/223-5-56-300-blackout-magazines/  --  Cheers and stay safe!

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What aftermarket mags work with a Ruger AR 556 chambered with 300 aac blackout mag serial number 90526