The Breek Arms Plan B Echo Single-Port Muzzle Brake in 9mm (brand part no. BRK4433) is an ultra-compact brake for the Plan B mounting system. Breek Arms uses 90-degree horizontal blast-vectoring ports to reduce recoil and muzzle rise, and the 9mm version is threaded 1/2×28. The brake is made from 4140 hardened steel with a nitride finish and is designed and manufactured in America. It is made to accept a Plan B suppressor mount so you can switch to a suppressor without changing the muzzle device.

Key Specifications

• The caliber option is 9mm, one of the three Echo sizes Breek Arms lists.
• The thread pitch is 1/2×28.
• The port design is a single port with 90-degree horizontal blast-vectoring ports, aimed at reducing recoil and muzzle rise.
• Overall length is 1.75 inches, an ultra-compact size.
• Material is 4140 hardened steel.
• The finish is nitride.
• The suppressor mount compatibility is Plan B / Atlas.
• The torque specification is 20 to 30 ft-lbs.
• A peel washer is included, which Breek highly recommends for installation.
• Installation requires a 13/16-inch wrench.

Frequently Asked Questions

What thread does the 9mm version use? The 9mm Echo is threaded 1/2×28.

Is a washer included? Yes. A peel washer is included, and Breek Arms highly recommends peel washers or shims for installing muzzle devices.

Does it work with a suppressor mount? Yes. It is built for the Plan B mounting system and lists Plan B / Atlas as its suppressor mount.

Buy the Breek Arms Plan B Echo Single-Port Muzzle Brake, 9mm, 1/2×28

A compact brake that also hosts a suppressor mount keeps one muzzle device doing two jobs. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse more AR muzzle devices.