AR15 / M16 .223 5.56 .300blk Titanium Nitride TIN3 Bolt Carrier Group BCG.
The Bolt Assembly and Gas Key are Black Nitrided and the bolt carrier is gold titanium nitride. Titanium Nitride is an extremely hard ceramic coating used in aerospace and military applications that improves the maintenance, cleaning, edge retention and corrosion resistance of the bolt carrier group (bcg).
Features
Shot peened
MPI (Magnetic Particle Inspected)
9310 Tool Steel Bolt
8620 M16 carrier
Properly staked 4140 Gas Key fastened with Hardened Grade 8 Fasteners.
Extractor includes crane o-ring.
PROUDLY MADE IN THE USA!
The requirements for assembly of these 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 users.
Carrier
- M16 style (Auto)
- Machined from 8620 tool steel
- Heat treated to military specifications
Bolt
- Machined from 9310 tool steel
- Heat treated to military specifications
- Shot Peened
- Ground to meet military required tolerances
- MPI (Mag Particle Inspected)
Gas Key
- Machined from 4140
- Heat treated to military specifications
Extractor
- Machined from 4140
- Heat treated to military specifications
- Shot peened
Firing Pin
- Machined from 8640 tool steel
- Heat treated to military specifications
- Ground to meet military required tolerances
- Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2
Cam Pin
- Machined from 4340
- Quench and temper heat treat
- Ground to meet military required tolerances
Determined at checkout.
