AR15 .300 AAC Blackout Complete Upper Receiver Assembly 7.5" 1:7 Twist Barrel with Super Slim Quad Rail Handguard- Black

The AR-15 Upper Build (Mil-Spec) comes fully assembled and includes all the components necessary for a functioning Upper. The Upper Receiver, 7.5" .300 BLK Pistol Barrel and Bolt Carrier Group are made in the U.S. Included is a 7" Super Slim Quad Rail and Birdcage Muzzle Brake. Each part conforms to Mil-Spec dimensions and is made from quality materials to ensure accuracy and reliability

Includes:

• Upper receiver - US made
  
• .223/5.56 Bolt Carrier Group - US made
  
• Standard Charging Handle
  
• Ejection Port/Dust Cover Assembly
  
• Forward Assist Assembly
  
• 7.5" .300 AAC Blackout Rifle Barrel with 1:7 Twist - US Made
  
• Pistol Length Gas Tube - US made
  
• Low Profile Gas Block
  
• Muzzle Brake (Birdcage design)
  
• 7" Super Slim Quad Rail