The Dead Air KeyMo Muzzle Brake is a full-size muzzle brake built as the interface for Dead Air's KeyMo mounting system. It combines recoil reduction with a taper-style suppressor mount. The multi-port design helps keep the rifle flat under recoil for faster follow-up shots, and the precision-machined taper is made for consistent lockup and a repeatable return to zero each time you mount your suppressor.
The KeyMo system uses a taper with a mechanical detent designed to resist loosening from heat and vibration. Dead Air says this full-size brake suits higher-pressure calibers and shorter barrels, where recoil impulse and precision matter most, and it's meant for duty rifles, hard-use training guns, and long-range setups. It's machined from 4140 heat-treated alloy steel with a black nitride finish, and the overall length is 2.82". It includes a shim kit and instructions for timing the muzzle device. It comes in four thread patterns, so choose the one that matches your barrel.
The KeyMo system uses a taper with a mechanical detent designed to resist loosening from heat and vibration. Dead Air says this full-size brake suits higher-pressure calibers and shorter barrels, where recoil impulse and precision matter most, and it's meant for duty rifles, hard-use training guns, and long-range setups. It's machined from 4140 heat-treated alloy steel with a black nitride finish, and the overall length is 2.82". It includes a shim kit and instructions for timing the muzzle device. It comes in four thread patterns, so choose the one that matches your barrel.
Features
- Dead Air KeyMo Muzzle Brake, full size
- Thread options: 1/2x28 (4.42oz), 5/8x24 (3.90oz), and 3/4x24 (4.10oz)
- Bore diameter: .30 caliber (1/2x28 and 5/8x24) and .338 caliber (3/4x24 and M18x1)
- Multi-port design to help keep the rifle flat and speed up follow-up shots
- Precision-machined taper interface for consistent lockup and repeatable return to zero
- Taper with a mechanical detent, designed to resist loosening from heat and vibration
- Includes a shim kit and instructions for timing the muzzle device
- 4140 heat-treated alloy steel construction
- Black nitride finish
- Overall length: 2.82"
