DEAD AIR KeyMo Muzzle Brake — .578×28 threads for AR-15 platforms.
Caliber: Up to .458
Threads: .578×28
Dimensions & Weight:
- Overall length: 2.58 in
- Weight: 3.2–3.5 oz (varies by model)
Materials & Finish:
- 4140HT chromium-molybdenum heat-treated steel
- Black Nitride
Mounting & Compatibility:
- Compatible with all Dead Air KeyMo adapter-equipped silencers
- Muzzle-seating design; no shims needed
- Ports designed to distribute gas inside the silencer and resist carbon-lock