WMD BOLT ASSEMBLY 450 BUSHMASTER

WMD's Bolt Assembly-Optimized for performance. The bolt was engineered for NiB-X nickel boron coating to provide long life, ease of cleaning and superior locking and unlocking action with barrel extensions.

• Case Hardened 9310, Shot Peened, Magnetic Particle Inspected
• High Performance Extractor, Ejector Springs, and Gas Rings
• Special O-Ring Buffer
• NiB-X Coated Bolt and Extractor