Phase 5 Weapon Systems Inc AR15 Bolt Carrier Group BCG Nickel Boron Coating Nickel Boron Medium BCG-AR15 NiBX

Phase 5 AR15 Bolt Carrier Group in Nickel Boron offers enhances reliability by minimizing the need for lubrication, reducing friction, and improved resistance to corrosion. The BCG (Bolt Carrier Group) is heat treated and hardened. The hardened gas key is installed correctly utilizing hardened, grade-8 fasteners. Cleaning usually only requires a wipe down with a soft cloth. NiB-X finish on the BCG greatly reduces powder residue and debris as there is no wet or oil-ridden surfaces for the elements to stick to. NiB-X offers high lubricity and low friction, which extends the service life of your bolt and carrier. EXO Technology allows components to run longer and with less maintenance. EXO also assists with heat dissipation, allowing treated parts to run cooler. The EXO process permanently lasts the lifespan of all parts treated. EXO will nucleate on the surface atoms of metals, becoming one with the metal, rather than simply coating on top of the metal. This process makes the treated surface harder than substrate, eliminating many maintenance issues that come about on conventional BCG finishes. This bolt is designed for 5.56 NATO, .223 Remington, and 300 AAC Blackout. Nickel boron finished BCG Hardened steel Grade-8 fasteners attaching gas key Simply wipe away debris with a soft cloth High lubricity, low friction Excellent with heat dissipation NiB-X EXO becomes one with metal For 5.56 NATO, .223 Remington, and 300 AAC Blackout calibers