CMMG: Adapter, Magazine, 9 AR Conversion - 10-30rd, 2-Pack

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CMMG®’s 9 AR Conversion makes it possible to shoot 9mm ammunition from your unmodified AR15 lower receiver when paired with a CMMG® 9mm Radial Delayed Blowback upper.


CMMG®’s 9 AR Conversion is inserted into a Gen 2 or Gen 3 Magpul® PMAG®. It seats into your AR15 mag-well and holds up to 30 rounds of 9mm ammunition. Its unique design allows it to feed any CMMG® 9mm Radial Delayed Blowback upper receiver while maintaining last round bolt hold-open functionality.



  • 9×19mm
  • Can be modified to hold 10, 20, or 30 rounds
  • Last Round Bolt Hold-Open
  • 9ARC Internals to be put into Magpul® PMAG® (Gen 2 or Gen 3)
  • Uses Standard Carbine Buffer and Action Spring