This AR10 Nitride Treated Bolt Carrier Group. This comes fully assembled and ready to drop into your AR Build. Nitride coating provides not only a high core strength but give the Bolt Carrier group a tough exterior coating. The rockwall rating on this Nitride Treatment is 75 giving it a high wear resistance and made to take a beating. This is a DPMS compatible Bolt Carrier group and comes oiled but it is recommended to keep this BCG clean and oiled regularly.

– 8620 Steel Carrier Nitride treated
– 9310 Steel Bolt Nitride Treated
– MPI (Magnetic Particle Inspected)
– Shot Peened
– Nitride Treated Gas Key and Extractor
– Enhanced Firing Pin Retaining Pin
– Enhanced Ejector
– Enhanced Extractor Pin
– Gas key properly staked
– Made in USA