PVD AR-15 Parts
Rainbow AR-15 BCG | Mil-Spec Bolt Carrier Group | PVD Coated
Add distinctive color and dependable performance to your AR-15 with this Rainbow PVD Bolt Carrier Group (BCG). Built around an 8620 steel carrier with a Rainbow PVD finish and a 9310 MPI bolt with a black nitride finish, this AR-15 BCG combines durable construction with a unique custom appearance.
The Rainbow PVD coating on the carrier provides an attractive multi-color finish while improving surface durability and lubricity. The 9310 nitride bolt is magnetic particle inspected (MPI), while the gas key is hydraulically staked with Grade 8 Mil-Spec screws for dependable operation.
Made in the USA, this Rainbow AR-15 BCG is an excellent upgrade for shooters looking to combine reliable AR-platform components with a distinctive premium finish.
Corrected Features
- Bolt Carrier: 8620 steel
- Carrier Finish: Rainbow PVD
- Bolt: 9310 steel
- Bolt Finish: Black Nitride
- Bolt Inspection: MPI (Magnetic Particle Inspected)
- Gas Key: Hydraulically staked
- Gas Key Screws: Grade 8, Mil-Spec
- Cam Pin: Included
- Firing Pin & Retainer: Included
- Made in USA
What is the difference between the Rainbow PVD carrier and nitride bolt?
The 8620 carrier receives the Rainbow PVD coating, giving it its distinctive multi-color appearance along with a durable, low-friction surface. The 9310 bolt uses a black nitride finish for wear and corrosion resistance. This BCG therefore combines a Rainbow PVD carrier with a nitride-finished MPI bolt rather than applying the rainbow finish to every component.
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