The Midwest Industries MI-ARMB1 is a three-chamber muzzle brake designed for AR-15 platforms in .223 Remington/5.56 NATO. It features a 1/2″x28 thread pattern and measures 5.15 inches in overall length. The three-chamber design redirects expanding gases laterally and rearward to mitigate recoil and muzzle rise, reducing upward climb during rapid fire and improving target reacquisition.
Built by Midwest Industries, the MI-ARMB1 is engineered to enhance control and accuracy for precision shooting and tactical applications. The compact design accommodates both standard-length and shorter barreled rifles. When properly installed on a 1/2″x28 threaded barrel, this brake provides measurable improvement in handling during rapid strings of fire.
