Sons of Liberty Gun Works Bolt Carrier Group AR-15 5.56 NATO 223 Remington 300 Blackout Phosphate
Compare Deals from 23 Retailers
Specifications
Description
This AR-15 bolt carrier group from Sons of Liberty Gun Works is the component that drives the action, handling locking, unlocking, extraction and ejection in the AR platform's cycle of operations. It is offered in a black phosphate finish and is listed for 223 Remington, 5.56x45mm NATO and 300 Blackout chamberings.
The bolt is precision machined from Carpenter Technology No. 158 chrome-nickel alloy, heat treated to mil-spec, shot peened per ASTM B851 and SAE AMS2430S, and vibratory tumbled. Each unit is individually high-pressure (HP) tested, magnetic particle (MP) inspected per ASTM E1444, and test fired at assembly. The extractor is machined from 4340 tool steel per SAE AMS6415T and is heat treated and shot peened.
The group is listed for AR-15 rifles chambered in 5.56/223 and 300 Blackout. Markings are deep laser engraved to identify the shot peen, high pressure and magnetic particle processes.
- Platform: AR-15
- Calibers: 223 Remington, 5.56x45mm NATO, 300 Blackout
- Finish: Phosphate
- Color: Black
- Bolt material: Carpenter No. 158 chrome-nickel alloy
- Extractor material: 4340 tool steel
- Testing: High pressure (HP) and magnetic particle (MP) inspection, test fired at assembly