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  • Flying Monkey Firearms 300BLK Complete Upper


    Aero Precision assembled upper receiver Midwest Industries Combat handguard Flying Monkey Firearms 8.5” 300BLK barrel, 4140 steel, Melonite treated, 1:10 twist rate Pistol length gas system and stainless-steel gas block KAK Industries bolt carrier group Mil-Spec charging handle A2 Flash Hider – improved muzzle climb and flash suppression     ***All Uppers are built to…