Calibers: 5.56 Nato, .223, 300 BO
8620 Steel, Mil-Spec M16 Carrier
Coating: Nickel Boron Coated or Black Nitride - QPQ Treated
9310 Steel, Machined Extractor with Crane O-Ring
There are no Metal Injection Molded (MIM) parts in this BCG. All parts are machined parts. Black Nitride/QPQ: This is an extreme case hardening process that turns the steel black and hardens the surface of the steel and extends the life of the product. QPQ stands for Quench Polish Quench. This process is now commonly used in the industry. Our Black Nitride products are coated by H&M who owns the trademark, "Black Nitride".
Proudly made in the USA.
|Bolt:||9310, Shot Peened, Heat Treated, Nickel Boron Plated|
|Carrier:||SAE 8620, Heat Treated, Black Nitride, Full Auto|
|Extractor:||Swiss Machined, Heat Treated, Precision Ground, Black Nitride|
|Firing Pin:||Swiss Machined, Heat Treated, Precision Ground|
|Gas Key:||CNC Machined, Heat Treated, Chrome Lined, Torqued and Staked to Mil-Spec, Black Nitride Plated|
|Cam Pin:||Swiss Machined, Heat Treated, Black Nitride Plated|
|MPI Tested:||Yes, Lot Tested|
|Country Of Manufacture:||United States|