*This is D. P. M. S. compatible and meets or exceeds Mil Spec standards.
* Nitride coated for the longest lasting and most durable BCG on the market
* HPT/ MPI Tested
*100% made in the USA so you know the gas key is properly staked with grade 8 heat treated fasteners.
* Bolt is 9310, case hardened and then Cryo treated
* Bolt is shot peened.
* The carrier is 8620 steel, heat treated and case hardened to Mil Standards.\
* properly staked gas key and Upgraded Extractor to a 6875 extractor
*100% Made in the USA
* comes fully assembled and ready to drop in ( oil before usage)