Best Use: Mid Range / Varmint Hunting Specifications:  Caliber:  300AAC Blackout Upper Receiver:  Stripped Upper Receiver  Upper Parts Kit Barrel:  7.5" Nitride Pistol...

  Best Use: Long Range / Big Game Hunting Specifications:  Caliber:  7.62 x 39 Upper Receiver:  Stripped Upper Receiver  Upper Parts Kit Charging Handle Barrel:  16"...

  Best Use: Close Range / Minimal Recoil Specifications: Caliber:  9MM (Semi-Automatic) Upper Receiver:  Stripped Upper Receiver Charging Handle  Barrel:  16" Nitride Blow Back...

  Lower Parts Kit Compatible:  AR-15  Included: Bolt Catch Bolt Catch Plunger Bolt Catch Roll Pin Bolt Catch Spring Buffer Buffer Retainer Buffer Retainer Spring Disconnect Disconect...

Best Use: Close Range / Minimal Recoil Specifications: Caliber:  9MM (Semi-Automatic) Upper Receiver:  Stripped Upper Receiver Charging Handle  9mm Bolt Carrier Group  Barrel:  7...