The Breek Arms Echo Single-Port Muzzle Brake (MPN BRK4330) is a .223 Rem/5.56 NATO muzzle brake threaded 1/2-28 that mounts to the Breek-LOK 3QD quick-detach hub system.

Key Specifications

• Bore sized for .223 Rem/5.56 NATO
• Thread pattern: 1/2-28
• Product type: single-port muzzle brake
• Interfaces with the Breek-LOK 3QD HUB’s tri-lug engagement system for quick-detach suppressor mounting
• Part of the Breek LOK 3QD muzzle device family
• Manufactured by Breek Arms

Frequently Asked Questions

Is this brake an NFA item?
No. It is a muzzle brake and suppressor-mounting interface; only a suppressor attached through the Breek-LOK system is a regulated Title II item.

What thread pitch does it use?
1/2-28, the standard thread for .223/5.56 AR-pattern rifles.

How does it mount a suppressor?
It pairs with the Breek-LOK 3QD HUB, which uses a tri-lug engagement system for fast, repeatable suppressor attachment.

Buy the Breek Arms Echo Single-Port Muzzle Brake

Set up your 5.56 rifle for quick-detach suppressor use with this Echo brake from Breek Arms. Ships fast from Lubbock, TX in our Class 3 parts and accessories lineup.