Breek Arms Plan B Echo Single-Port Muzzle Brake 1/2x28 9mm - Muzzle Device

The Echo's single-port 90-degree gas-venting recoil reduction in a 9mm-optimized configuration. The Breek Arms Plan B Echo Single-Port Muzzle Brake for 9mm brings the same compact 1.75-inch Plan B-compatible brake design to pistol-caliber carbines and 9mm AR-15 builds, reducing muzzle rise and recoil while maintaining full Plan B/Atlas suppressor mount compatibility.

The Breek Arms Plan B Echo Single-Port Muzzle Brake 9mm is an ultra-compact single-port muzzle brake machined from 4140 hardened steel with a nitride finish, designed for 1/2x28-threaded 9mm barrels with Plan B and Atlas suppressor mount compatibility.

Three features define the Echo's recoil control advantage for 9mm PCC and AR builds. The single-port 90-degree horizontal venting design redirects propellant gas laterally, counteracting the rearward recoil impulse and muzzle rise that 9mm PCCs and AR-15 pistol-caliber builds can exhibit under rapid fire — particularly meaningful on blowback-operated 9mm platforms where the recoil impulse is heavier than on gas-operated systems. At 1.75 inches overall, the Echo maintains the compact proportions that PCC and pistol-caliber builds benefit from, adding minimum length to the muzzle end while delivering the recoil mitigation that suppressor-host PCCs benefit from for faster follow-up shots. The Plan B interface provides fast, tool-free transitions to any Plan B or Atlas suppressor mount, enabling the shooter to switch seamlessly between muzzle brake and suppressed configurations on the same 9mm platform.

Compatible with 1/2x28-threaded 9mm barrels. Plan B and Atlas suppressor mount compatible. Requires 13/16-inch wrench. Peel washer included.

4140 hardened steel, nitride finish. 1.75" overall length. Weight: 2.3 oz. Torque: 20–30 ft-lbs. Made in the USA.

Built for 9mm PCC, 9mm AR-15, and other 1/2x28-threaded 9mm builds running Plan B or Atlas suppressor mounts where compact muzzle brake performance and quick-detach suppressor compatibility are both needed.

By Breek Arms. Made in the USA. Peel washer included. Standard Breek Arms warranty applies.