AR-15 AERO PRECISION .223/5.56 .300Blk Polished NICKEL BORON Bolt Carrier Group Assembly

Features:

• M16 Style (Full Auto)
• .223/5.56 Caliber
  
• Mil-Spec
  
• Precision Machined
• Heat Treated Steel
• Shot Peened MPI Bolt - 9310 material
• 8620 Gas Carrier
• NICKEL BORON Finish
• Fits: AR-15 / M16

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov