Breek Arms Breek Lok Sentinel Flash Hider

No Crush Washer, No Timing — Breek-Lok Precision Installation

The Breek Arms Breek-Lok Sentinel Flash Hider is a precision-machined muzzle device built for AR-platform rifles. Designed with Breek Arms' proprietary Breek-Lok mounting system, the Sentinel installs and locks securely without the need for crush washers or timing — making it one of the cleanest, most repeatable flash hider installations available. The multi-prong design effectively disperses muzzle gases and reduces visible flash signature, keeping your sight picture clear in low-light conditions.

Durable, Repeatable, and Breek-Lok Compatible

Machined from high-quality steel and finished for durability, the Sentinel is a straightforward upgrade for shooters who want a reliable, well-built muzzle device that goes on right and stays put. Compatible with standard AR-15 1/2x28 threading and designed to work seamlessly with other Breek-Lok compatible accessories.

Available in store at Glenwood Springs Outdoors, 831 Grand Ave, Glenwood Springs, CO.