Dark Storm Industries DS-15 MOE .300 AAC Blackout 12.5inch Upper Receiver w/MVG Pistol Length 1-8 Twist Olive Drab Green. Perfect for your next Non NFA build. Specifications for Dark Storm Industries DS-15 MOE .300 AAC Blackout 12.5inch Upper Receiver w/MVG: Manufacturer: Dark Storm Industries Caliber: .300 AAC Blackout Barrel Length: 12.5 in Barrel Profile: SOCOM Gas System Length: Pistol Length Barrel Twist Rate: 1-8 Fabric/Material: 7075 Aluminum Barrel Material: Steel Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Magazine Included: No Country of Origin: USA Features of Dark Storm Industries DS-15 MOE .300 AAC Blackout 12.5inch Upper Receiver w/MVG Lifetime warranty Fully Transferable No Registration or Proof of Purchase Required Package Contents: Dark Storm Industries DS-15 MOE .300 AAC Blackout 12.5inch Upper Receiver w/MVG Dark Storm Industries DSI-UC5-MOE-12P8-T3-ODX: DS-15 MOE .300 AAC Blackout 12.5inch Upper Receiver w/MVG Pistol Length 1-8 Twist Olive Drab Green