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For sale is my new complete 9mm upper. Includes CMMG colt bolt, HAHN 9mm bottom loading colt 9mm AR15 adapter, and complete side charging MLOK upper with 8.5" CMMG barrel. Was going to adapt an AR15 and decided to go with a MPX instead. All you need is a H5 heavy buffer and you're ready to mount this to your AR15 pistol/sbr lower and have 9mm fun. $650 OBO keep in mind all components cost well over the $650 asking price.