The Dead Air DA102 KeyMo Muzzle Brake is a 7.62mm / .30 caliber muzzle device with 5/8x24 threads, designed for use as both an effective stand-alone muzzle brake and as a KeyMo-compatible suppressor mounting interface.

Dead Air’s KeyMo system is widely used across Dead Air suppressor setups and compatible KeyMo-equipped silencers. The DA102 provides the 5/8x24 thread pattern commonly found on .30 caliber rifle barrels, including many 7.62 NATO, .308 Winchester, 300 Blackout, 6.5 Creedmoor, and similar hosts, provided barrel thread and bore compatibility are confirmed.

The KeyMo muzzle brake uses Dead Air’s sealed taper design positioned forward of the locking channels. This helps keep carbon away from the locking interface and supports easier suppressor removal after use. When used without a suppressor, the brake also helps reduce recoil and muzzle movement compared to a plain muzzle.

Dead Air lists the KeyMo muzzle brake with 4140 heat-treated alloy steel construction, a black nitride finish, 2.82-inch overall length, and 3.90 oz weight for the DA102 version. The DA102 is the 5/8x24 .30 caliber model.

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