Description
CMMG’s Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension. The barrel is constructed of 4140 chrome moly with a slat bath nitride finish and 5/8×24″ threads.
| Type | Rifle |
|---|---|
| Model | Barrel Sub-Assembly |
| Twist | 1:7″ |
| Finish | Nitride |
| Length | 16.10″ |
| Series | MR |
| Sights | None |
| Barrel Type | Carbine Length |
| Barrel Features | Multi Role Profile |
| Caliber Or Gauge | 300 AAC Blackout/Whisper (7.62x35mm) |
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