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.
Specifications
| Features | 5.56 NATO/223 Remington; NiB-X Coating; Case Hardened 9310; Magnetic Particle Inspected; High-Performance Extractor |
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