Yes, theoretically you could use the CMMG, Inc .300 AAC Blackout Barrel Sub-Assembly in a Smith and Wesson M&P 15. I recommend you take your rifle to a gunsmith to ensure its done properly, if you choose to swap out barrels.
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by TX Roadrunner, from TX, United States Asked on January 30, 2022
Yes, theoretically you could use the CMMG, Inc .300 AAC Blackout Barrel Sub-Assembly in a Smith and Wesson M&P 15. I recommend you take your rifle to a gunsmith to ensure its done properly, if you choose to swap out barrels.