Description
WMD’s 5.56 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.
- 5.56 NATO/223 Remington
- NiB-X Coating
- Case Hardened 9310
- Magnetic Particle Inspected
- High-Performance Extractor
