308/7.62X51 BLACK NITRIDE DPMS PATTERN BCG
Caliber Black Nitride Bolt Carrier Group. We are having these built
to our exacting standards. The Bolt is shot peened and manufactured out
of 9310 Tool Steel with a 4140 Machined Extractor. The 8620 tool steel
carrier is the more common DPMS pattern. Bolt and Carrier are Black Nitrided.
requirements for assembly of our Bolt Carrier Groups are much higher
than most. Before assembling the gas key to the carrier, permatex NO.3D
aviation is applied to form-a-gasket around the gas hole (per MIL-SPEC).
Then Grade-8 hardware is used to attach the gas key, followed by
properly staking per spec. When installing the extractor to the bolt, a
crane-o-ring is inserted with the spring to insure proper ejection. Then
high temperature grease is applied to the gas rings before inserting
the bolt into the carrier, which allows for much smoother operation.
These BCGs are inspected to the highest of standards, to insure a high
quality product that is 100% reliable for our customer. Proudly made in the USA!!