Breek Arms Plan B Sentinel Closed Flash Hider | .223/5.56 | 1/2x28 TPI

Breek Arms^® Plan B Sentinel Closed Flash Hider | .223/5.56 | 1/2×28 TPI

Suppressor-Ready Flash Control, No Compromise

The Breek Arms^® Plan B Sentinel Closed Flash Hider is purpose-built for shooters who demand exceptional flash reduction and suppressor-ready functionality in one streamlined device. Designed for .223 / 5.56 AR-15 platforms, the Sentinel’s closed-end design eliminates visible flash while maintaining compatibility with Plan B HUB-mounted suppressor systems. It’s the ideal choice for tactical builds, defensive carbines, and precision rifles alike.

Closed Design for Enhanced Flash Suppression

The Sentinel’s caged flash hider design effectively contains and redirects muzzle flash, reducing visible signature and maintaining night vision during low-light engagements. The enclosed tip prevents debris buildup while minimizing secondary blast, creating a smooth and consistent muzzle impulse with every shot. Perfect for both indoor range use and outdoor tactical environments.

Plan B HUB-Compatible Interface

Built with a 1.375×24 HUB-compatible interface, the Sentinel flash hider serves as a secure foundation for Plan B-compatible suppressor systems. Precision-machined bore alignment ensures concentric fitment for safe, repeatable suppressor use without point-of-impact shift. The result is reliable flash control and compatibility with the latest in modular muzzle and suppressor technology.

Rugged Construction, Long-Term Durability

Machined from 17-4 stainless steel and finished in black nitride, the Sentinel is built to withstand extreme heat, pressure, and carbon fouling. The corrosion-resistant surface maintains a clean appearance and smooth function over thousands of rounds. Designed for 1/2×28 threaded barrels, it installs easily on most .223/5.56 AR-15 platforms.

Breek Arms^® Plan B Sentinel Flash Hider Specifications

• Model: Plan B Sentinel Closed Flash Hider
• Caliber: .223 / 5.56 NATO
• Thread Pitch: 1/2×28 TPI
• Material: 17-4 Stainless Steel
• Finish: Black Nitride
• Interface: Plan B HUB Compatible (1.375×24)
• Design: Closed-End / Caged Flash Hider
• Length: 2.5″
• Weight: Approx. 3.1 oz
• Manufactured In: U.S.A.

Controlled Flash. Maximum Compatibility.

The Breek Arms^® Plan B Sentinel Closed Flash Hider provides professional-grade flash mitigation with the added versatility of Plan B suppressor mounting. Whether for tactical use or precision shooting, the Sentinel delivers durable, low-signature performance with Breek’s signature precision engineering.

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