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Product Details

Advanced Dead Air KeyMo Style QD Muzzle Brake - .223 Cal 1/2 -28 in

Improved muzzle brake design that has the QD interface to adapt to KeyMo / Dead Air style suppressors. Has two optimally placed vertical vent ports for better muzzle control when firing without your suppressor attached. Has an advanced tuned port balanced internal baffle design for superior blast control. Made from hardened alloy steel and black oxide finished for durability.


1/2 in - 28 in thread for 5.56mm / .223 Remington caliber barrels.


Package includes: (1) muzzle brake, (1) packet of shims and installation instructions.

Advanced Dead Air KeyMo Style QD Muzzle Brake - .223 Cal 1/2 -28 in

Out of Stock
  • Just like the muzzle brake that came with your suppressor, DO NOT USE A CRUSH WASHER with the installation of this muzzle brake.  This muzzle brake has been supplied with 5 shims so you can properly time the muzzle brake for proper orientation.  Included are three thicker shims and two thinner shims to fine tune the timing of the muzzle brake. The two relief ports are to be located on the top at the 12 o’clock position.  It is strongly recommended to use a high strength or permanent thread locker such as the Red Loctite 262 (high temperature), Rocksett or equivalent (not included) on the threads of your barrel just before installing for a secure hold. 

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