AR-15 Rainbow Oil Slick PVD Bolt Carrier with Gas Key

Manufactured from 8620 alloy steel, this Mil-Spec dimensioned carrier is guaranteed to work with your existing components, or compliment your custom build.

• 8620 Alloy Steel

• Bores - Chrome Lined to Mil-Spec

• Heat Treated and Dimensioned to Mil-Spec 

• Rainbow PVD - microhardness to 80 Rc

• Forward Assist Notches

• Quick Conversion with your Existing Components

Gas Key

• 4140 Heat Treated Steel

• Chrome Lined Bore

• Mag Phos Finish

• Torqued and Staked