AR-15 Bolt Carrier Group Mil-Spec BCG (Gloss Rainbow PVD Coated)

Rainbow PVD AR15 BCG for Custom Builds

This Rainbow PVD AR-15 bolt carrier group is designed for builders who want reliable performance with a unique, eye-catching finish. Built to mil-spec standards, this AR15 BCG features an 8620 steel bolt carrier and a 9310 MPI bolt to deliver consistent function across a wide range of rifle builds.

Mil-Spec Construction & Quality Materials

The carrier is precision machined from 8620 steel for strength and durability, while the 9310 bolt is MPI (Magnetic Particle Inspected) to ensure structural integrity under stress. This bolt carrier group includes grade 8 screws to mil-spec and a hydraulically staked chrome-lined gas key for reliable gas system operation.

Gloss Rainbow PVD Finish

The gloss rainbow PVD (Physical Vapor Deposition) coating on the bolt carrier provides a vibrant, color-shifting finish while also improving durability and lubricity. The bolt, firing pin retainer, cam pin, and staked screws feature a nitride finish for enhanced wear resistance and smooth performance.

Built for Performance & Style

Weighing approximately 11.5 oz, this mil-spec BCG is engineered for reliable cycling and long-term use. Whether you're building a show rifle or upgrading your setup, this rainbow AR-15 BCG delivers both function and standout aesthetics. Made in the USA and backed by a 1 year warranty, it’s built to perform and impress.

Key Features

• 8620 Steel Bolt Carrier
• Gloss Rainbow PVD Finish (Bolt Carrier)
• 9310 MPI Bolt (Magnetic Particle Inspected)
• Nitride Finish on Bolt, Firing Pin Retainer, Cam Pin & Screws
• Grade 8 Screws to Mil-Spec
• Hydraulically Staked Chrome-Lined Gas Key
• Weight: 11.5 oz
• USA Made
• 1 Year Warranty