WMD Guns NiB-X Bolt Assembly 300 AAC Blackout AR-15 Nickel-Boron

The WMD Guns NIB-X BOLT ASSEMBLY for AR-15 provides a high-performance upgrade designed to enhance reliability and longevity in bolt operation, forged for AR-15 platforms and optimized for use with 300 AAC Blackout cartridges. Featuring a Nickel-Boron finish, this bolt assembly delivers superior wear resistance and reduced friction, promoting smoother cycling, easier cleaning, and improved longevity under demanding shooting conditions. Engineered for precision and endurance, the NiB-X coating he