AR-15 Nickel Boron Bolt Carrier Group Mil-Spec BCG

Nickel Boron AR15 BCG for Reliable Performance

This Nickel Boron AR-15 bolt carrier group is built for shooters who demand reliability, durability, and smooth operation. Designed using an 8620 steel bolt carrier and a 9310 steel bolt, this AR15 BCG delivers consistent performance across a wide range of builds, from standard rifles to fully customized setups.

Premium Materials & Mil-Spec Construction

The carrier is precision machined from 8620 steel, known for its strength and wear resistance, while the 9310 bolt is MPI (Magnetic Particle Inspected) to ensure structural integrity under stress. Equipped with grade 8 screws and a hydraulically staked chrome-lined gas key, this bolt carrier group is built to maintain proper gas system function and long-term reliability.

Nickel Boron Finish for Smooth Cycling

The nickel boron coating provides a slick, low-friction surface that improves cycling and reduces carbon buildup. This makes cleaning easier and helps your rifle run smoother, even during extended use.

Built for Heavy Use

This AR-15 BCG is heat treated for durability and engineered to handle demanding shooting conditions. Whether you're upgrading an existing rifle or completing a new build, this nickel boron BCG offers the performance and reliability you need.

Key Features

• 8620 Steel Bolt Carrier
• 9310 MPI Bolt (Magnetic Particle Inspected)
• Nickel Boron Finish for Reduced Friction
• Grade 8 Screws (Mil-Spec)
• Hydraulically Staked Chrome-Lined Gas Key
• Heat Treated for Heavy Duty Use
• USA Made
• 1 Year Warranty