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Black Nitride Bcg 9310 Mpi
Product Code: XAIMBCGN3BDG UPC/Barcode: 10070743
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AIM AR/M16 5.56/.223/.300 BLACKOUT caliber complete Black Nitrided Bolt Carrier Groups. A newly designed carrier reduces the surface area contact between the carrier and receiver walls. This improves performance and reliability as it reduces drag and creates 'debris' channels to reduce malfunctions. These bolts are manufactured to our exacting standards with no Frills added to be able to offer the best BCG at the Best Price!
Assembly
The 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!
Carrier
Carrier
- M16 style (Auto)
- Machined from 8620 tool steel
- Heat treated to military specifications
- Machined from 9310 tool steel
- Heat treated to military specifications
- Shot Peened
- Ground to meet military required tolerances
- MPI (Mag Particle Inspected)
- Machined from 4140
- Heat treated to military specifications
- Machined from 4140
- Heat treated to military specifications
- Shot peened
- 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
- Machined from 4340
- Quench and temper heat treat
- Ground to meet military required tolerances