The Breek Arms Echo Single-Port Plan B Muzzle Brake (MPN BRK4431) is a .30 caliber brake in black nitride steel, threaded 5/8-24 for the Plan B quick-detach mounting system.

Key Specifications

• Bore sized for .30 caliber
• Thread pattern: 5/8-24
• Black nitride steel construction
• Ultra-compact single-port design built for the Plan B mounting system
• 90-degree horizontal blast-vectoring ports reduce recoil and muzzle rise
• Keeps the rifle flat and fast for quicker follow-up shots
• Built for seamless suppressor swaps on the Plan B platform
• Manufactured by Breek Arms

Frequently Asked Questions

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

What do the horizontal ports do?
They vector blast to the sides at 90 degrees, cutting recoil and muzzle rise while keeping the rifle flat for follow-up shots.

What thread pitch does it use?
5/8-24, the standard thread for most .30 caliber rifles.

Buy the Breek Arms Echo Single-Port Plan B Brake

Cut recoil and set up fast suppressor swaps with this Plan B brake from Breek Arms. Ships fast from Lubbock, TX in our Class 3 parts and accessories lineup.