MPN: BRK4331

Features:

• QD Platform Ready: Built to interface with the Breek-LOK 3QD system for fast, secure suppressor mounting
• Recoil + Rise Control: Single main port with 90° side venting and six jet ports drives the muzzle flat and trims blowback for a cleaner sight picture
• Pin-and-Weld Friendly: 2.06" OAL is designed for pin & weld on 14.5" barrels to help meet the 16" federal minimum
• Hard-Use Build: 4140 hardened steel, nitrided for wear, heat, and corrosion resistance—made to run
• Light, Compact, Balanced: 1.7 oz keeps weight off the nose without sacrificing control
• Easy Install: Ships with a peel washer for straightforward timing
• USA Made: Designed and manufactured in America

Specifications:

• Material: 4140 Hardened Steel
• Finish: Black Nitride
• Outer Diameter: 0.94"
• Bore Diameter: 0.39"
• Weight: 1.7 oz.
• Length: 2.06"
• Thread: 5/8"-24

Compatibility:

• Any .308/7.62/300BLK barrel with 5/8"-24 thread pitch
• Breek-LOK 3QD HUB Quick Detach Suppressor Mount

NOTE:

• Installation will require a Breek-LOK Installation Tool or a strap wrench
• Echo Muzzle Brakes using .308 ammunition have been tested and rated for 14.5" barrels and longer

Includes:

• 1x Breek Arms Breek-LOK 3QD Echo Single-Port .308 Muzzle Brake
• 1x Peel Washer

Details:

If you’re running a .30-cal rifle in the Breek-LOK 3QD ecosystem, the Echo Single-Port Muzzle Brake gives you a compact brake that also serves as your suppressor host. Your 3QD HUB attaches with a short push-and-twist and comes off just as quickly—no front-end reconfiguration and no timing shims—so moving from bare to suppressed takes seconds.

Recoil control without drama

A single 90-degree side port trims rearward impulse so the rifle settles straight back instead of jumping, and two small top vents provide a light counter to muzzle rise. The effect is practical and predictable: flatter tracking and quicker follow-ups, without extra blast aimed at the shooter.

Materials, threads, and install

The .30-cal Echo is cut from 4140 hardened steel and finished in black nitride to handle heat, carbon, and weather. It’s 5/8×24 threaded for .308 hosts, measures about 2.0 inches overall, and weighs roughly 1.7 oz, keeping the front end from feeling nose-heavy. Standard wrench flats make installation straightforward, and a peel washer is included for fitment. Its length also makes it a candidate for pin-and-weld on 14.5-inch barrels if you’re building to a 16-inch OAL.

Built for the 3QD workflow

Once installed, the Echo provides a repeatable interface for Breek-LOK 3QD suppressors, supporting fast attach/detach with consistent alignment. Shoot unsuppressed when you want a minimal profile, then add the can when the scenario calls for it—without changing how the rifle handles.