When it comes to your AR-15’s bolt carrier group, reliability is paramount, and that’s precisely what you get with RISE Armament’s advanced Nickel Boron Bolt-Carrier Group (BCG).
At RISE, we take precision manufacturing seriously, ensuring that each bolt carrier group meets our rigorous standards for performance and durability. Every BCG undergoes individual inspection to guarantee optimal functionality, giving you peace of mind in the field.
Our signature AR-15 Bolt Carrier Group is available in two finishes, with the nickel boron coating standing out for its remarkable properties. Nickel boron, a compound comprising approximately 95 percent nickel and 5 percent boron, forms a columnar structure that reduces surface contact points while enhancing hardness. This unique structure acts as a lubricant, minimizing friction and wear for smoother operation and extended longevity.
Compared to standard chrome, nickel boron offers superior resistance to wear and corrosion, ensuring that your bolt carrier group remains reliable and functional for the long haul. With an 11.6-ounce weight, our nickel boron BCG is robustly built and extensively tested to withstand the rigors of any shooting scenario.
Here’s a breakdown of the materials used in our nickel boron BCG:
- Bolt: 9310 steel, MPI tested for quality assurance
- Carrier: 8620 tool steel, heat treated and case hardened for strength
- Gas key: Tool steel construction with grade 8 hardened fasteners, properly staked for security
- Cam pin: Constructed from 4140 steel for durability
- Extractor: Made from tool steel and shot peened to enhance resilience
With RISE Armament’s Nickel Boron Bolt-Carrier Group, you can trust that your AR-15 is equipped with the highest quality components, built to perform under any conditions.
