The full size KeyMo Muzzle Brake was built for shooters who run their rifles hard and expect a mounting system that performs.
It’s a purpose-built interface for the KeyMo mounting system, combining aggressive recoil reduction with one of the most proven suppressor attachment systems on the market. The multi-port design keeps the rifle flat under recoil and fast on follow-up shots, while the precision-machined taper interface ensures consistent lockup and repeatable return to zero every time you mount your suppressor.
The KeyMo system uses a taper design with a mechanical detent that resists loosening under heat and vibration. This full size brake is especially at home on higher-pressure calibers and shorter barrels where recoil impulse and precision matter most.
Whether you’re running duty rifles, hard-use training guns, long-range setups, or any combo of purpose-built rifles, the KeyMo Muzzle Brake delivers consistency, durability, and control where it counts.
Specifications:
Material: 4140 HT Alloy Steel
Finish: Black Nitride
Bore: .338
Threaded Pitch: M18x1.5
Weight: 4.10oz
NOTE: The DA101 and DA102 come with a pre-drilled hole for pin & weld at the 6 O’clock position. The DA103, DA104, and DA106 do not have a pin/weld hole and do not have the three port holes on the top wrench flat.
Compatible Silencer(s):
KeyMo equipped silencers
Sandman series
Nomad series with KeyMo adapter
Nomad Ti series with KeyMo adapter
Primal with KeyMo adapter
Sierra 5 with KeyMo adapter
Wolverine with HUB adapter
Specifications
| Platform | AR15 |
|---|---|
| Caliber | 338 |
| Thread Pitch | M18x1.5 |
| Manufacturer | Dead Air |
| Colors | Black |
Compliance
Know all your state laws before purchase is made.

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