Midwest MIARMB1 3-Chamber Muzzle Brake 5.56/.223 1/2-28

The Midwest Industries MIARMB1 is a three-chamber muzzle brake engineered for AR-platform rifles chambered in 5.56/.223. Its multi-chamber design reduces muzzle rise to help maintain sight picture and speed follow-up shots. Constructed of tool steel with a black phosphate finish, the unit threads on via standard 1/2-28 tpi and ships with a crush washer for installation. Made in the U.S.A., it fits AR-15 style barrels specified for 1/2-28 threads.

Key Specifications

• This muzzle device is compatible with rifles chambered in 5.56/.223.
• The thread pattern is 1/2-28 to fit standard AR-15 barrels with that thread size.
• The three-chamber design purposefully reduces muzzle rise for faster follow-up shots.
• Constructed from tool steel for durability under regular use.
• Finished with black phosphate for corrosion resistance and subdued appearance.
• The package includes a crush washer to aid installation and alignment.
• Designed as an AR-15 accessory for the AR-platform family of rifles.
• Product type is a muzzle brake intended to manage recoil impulse and rise.
• Manufactured in the United States to Midwest Industries specifications.

Compact and purpose-built, the MIARMB1 balances proven mechanical function with a straightforward fitment for 1/2-28 threaded AR barrels. Its three-chamber profile and robust steel construction make it a practical choice for shooters who prioritize controlled follow-up shots and consistent handling from their AR-platform rifle. The included crush washer and durable phosphate finish keep installation simple while providing reliable service in a range of field and training environments.