TacFire MZ1021 Thread Crown Muzzle Brake 5.56x45mm NATO 1/2x28 Black Oxide Steel

The TacFire MZ1021 Thread Crown Muzzle Brake is a compact crown-style muzzle device purpose-built for 5.56x45mm NATO AR-15 platforms. Machined from steel and finished in black oxide, the MZ1021 is built to take the heat and gas blast of duty-grade .223 Rem/5.56mm cycling while resisting corrosion in field conditions.

A standard 1/2x28 thread pitch lets the Thread Crown thread directly onto the AR-15 barrel with no adapter or shim required, making it a straightforward drop-on upgrade or replacement for existing muzzle devices. At just 2.05 in overall length, it preserves a short, snag-free profile that suits carbine-length and short-barreled builds, as well as competition rifles where handling speed matters.

The crown-style porting helps tame felt recoil and redirect muzzle rise, keeping the sight picture flatter through rapid strings of fire. Made in the USA, the TacFire MZ1021 Thread Crown is an affordable, no-frills muzzle brake for any shooter running a standard AR-15-pattern rifle chambered in .223 Rem or 5.56x45mm NATO.