The Midwest Industries Black Nitride Bolt Carrier Group delivers reliable cycling and extraction for AR-15 pattern rifles chambered in 5.56 NATO/.223 Remington.
- Part Type: Bolt Carrier Group
- Compatible Firearms: AR-15, M16, M4 (5.56 NATO/.223 Remington)
- Material: 8620 Steel
- Finish: Black Nitride
- Installation: Drop-In
- Includes: Bolt, Carrier, Gas Key (Staked), Cam Pin, Firing Pin, Retaining Pin, Extractor Assembly, Ejector Assembly
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