Breek Arms Sentinel Caged Flash Hider – Multiple Calibers & Threads – Breek-LOK 3QD
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- 90-day no-hassle returns policy
- Limited Warranty what it covers
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From orders that included this itemProduct description
Improved A2 Birdcage Flash Hider Design With Quick-Detach Suppressor Compatibility
The Breek Arms Sentinel Caged Flash Hider is your go-to solution for serious flash suppression without the tuning fork ring of snag-prone open-prong designs. Built for seamless compatibility with the Breek-LOK 3QD suppressor mounting system, the Sentinel offers all the performance of a traditional flash hider, just with none of the ringing or snag hazards. Its caged design effectively breaks up muzzle flash to preserve night vision and reduce signature in low-light conditions, making it ideal for duty use, home defense, or tactical applications.
Features
- Enclosed (caged) flash hider design eliminates annoying “ping” after firing
- Excellent flash suppression in low-light or night conditions
- Compatible with Breek-LOK 3QD suppressor mount
- .223/5.56, .30 Caliber, and 9MM options
- Machined from heat-treated steel with black nitride finish
- Snag-free, impact-resistant design for hard-use environments
Specifications
- Brand: Breek Arms
- Model: Sentinel Caged Flash Hider for Breek-LOK 3QD
- MPN: BRK4324, BRK4323, BRK4321, and BRK4320
- Thread Options:
- 1/2×28 – .223/5.56
- 1/2×28 – 9MM
- 5/8×24 – 9MM
- 5/8×24 – .30 Cal
- Length: 2.25″
- Material: 4140 Hardened Steel
- Finish: Black Nitride
- Color: Black
- Weight:
- .223/5.56 – 2.0 oz
- .30 Cal – 1.8 oz
How to Connect Muzzle Device to Breek-LOK 3QD Quick Detach Suppressor Mount HUB
- Insert the Muzzle Device into the HUB: Align the muzzle device lugs with the HUB’s
corresponding engagement points. - Engage with a Push and a Twist: Depress inward and rotate the HUB 60° clockwise.
This motion guides the lugs into their locked position. - Secure the Tapered Seat: Complete an additional half rotation. This ensures the HUB’s
internal taper seats firmly against the corresponding taper on the muzzle device,
establishing a secure lock-up.
All 4 options on this page
- Breek Arms Sentinel Caged Flash Hider – Multiple Calibers & Threads – Breek-LOK 3QD - Threads: 1/2-28 for .223 Cal | SKU: BRK4320
- Breek Arms Sentinel Caged Flash Hider – Multiple Calibers & Threads – Breek-LOK 3QD - Threads: 5/8-24 for 9mm | SKU: BRK4324
- Breek Arms Sentinel Caged Flash Hider – Multiple Calibers & Threads – Breek-LOK 3QD - Threads: 1/2-28 for 9mm | SKU: BRK4323
- Breek Arms Sentinel Caged Flash Hider – Multiple Calibers & Threads – Breek-LOK 3QD - Threads: 5/8-24 for .30 Cal | SKU: BRK4321
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Warranty & returns
Limited Warranty
Breek Arms products are covered by a limited warranty against defects in materials and workmanship. If your product is found to be defective under normal use, Breek Arms will repair or replace it at their discretion. This warranty does not cover damage caused by misuse, modification, or normal wear and tear.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.











