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- Toolcraft 223/556/300 Blackout M16/AR-15 Bolt Carrier Group MPI Inspected Salt Bath Nitride Finish
- $139.95
- We Perform Mandatory Headspace Check on Every Bolt Assembly or Bolt Carrier Group with Complete Upper Receiver When You Purchase in Our Store Prior Shipping
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- Toolcraft 6.5 Grendel Type 2 M16/AR-15 Bolt Carrier Group MPI Inspected Nickel Boron Finish
- $169.95
- We Perform Mandatory Headspace Check on Every Bolt Assembly or Bolt Carrier Group with Complete Upper Receiver When You Purchase in Our Store Prior Shipping
- Add to cart
