Breek Arms BRK4420 Sentinel Caged Plan B Black Nitride Steel 1/2″x28 Threads 223 Cal/5.56mm
- Caliber/Gauge .223 REM/5.56 NATO
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The Sentinel is a closed-tine, fully shrouded design for superior flash suppression and to reduce snagging on gear. Built for Plan B mounts and pin-and-weld builds, it delivers rock-solid alignment, compact length, and NVG-friendly signature reduction.
Specifications
| UPC | 812296031763 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BRK4420 |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Model | Sentinel Caged |
| Product Type | Flash Hider |
| Shipping Weight | 0.0 |
| Thread Pattern | 1/2"x28 |
Shipping & Returns
All sales are final; we do not offer refunds or exchanges. Items that arrive damaged or defective are covered under the manufacturer's warranty — contact us within 5 days of delivery and we will help coordinate a claim.




