Aero Precision AR-15 Complete 5.56x45mm NATO Black Phosphate Steel APRH100019

This bolt carrier is a valuable addition to your AR15 build. It features a Mil-Spec phosphate coating, properly staked gas key with a chrome lined gas key and firing pin channel, a black o-ring insert on the extractor and is made of steel.

This high quality bolt carrier group is a valuable addition to your AR15 build.

Features:

• M16-cut carrier
• Machined from 8620 steel
• Carrier has forward assist serrations
• Mil-Spec phosphate coating
• Properly staked gas key
• Chrome lined gas key and firing pin channel
• 5.56 Bolt is machined from Carpenter 158 tool steel
• Shot peened
• HPT/MPI and marked
• Black o-ring insert on extractor
• High quality BCG