Dead Air Armament KeyMo Muzzle Brake Features The Dead Air Armament KeyMo Muzzle Brake is built from 4140HT chromium molybdenum heat treated steel and finished in a durable Black Nitride coating for long term corrosion resistance. Its muzzle seating design mounts solidly on rifle barrels that have little to no shoulder eliminating the need for shims during installation. The brake s ports are engineered to efficiently distribute gas and pressure which translates into a flatter shooting rifle with noticeably less concussion than a traditional brake delivers. Rated for calibers up to .458 this 5/8x24 threaded brake handles serious recoil while keeping the shooter on target for faster follow up shots. Beyond its standalone braking performance the KeyMo Muzzle Brake serves as the mounting foundation for Dead Air s KeyMo equipped suppressors including the Sandman Series. When it comes time to go quiet the suppressor attaches directly to the KeyMo mount without the carbon locking issues that plague some quick detach systems. Removal stays easy even after extended suppressed use preserving the mount s reliability over time. Whether run bare as a brake or as the gateway to a suppressed setup the Dead Air KeyMo Muzzle Brake is available for sale at GrabAGun for shooters who want flexibility built into their muzzle device. Dead Air Armament KeyMo Muzzle Brake Specifications Manufacturer: Dead Air Armament Model: KeyMo Muzzle Brake Type: Muzzle Brake Caliber: .45 Caliber Color: Black Material: 4140HT Chromium Molybdenum Steel Finish: Nitride Thread Pitch: 5/8x24 Overall Length: 2.58 Weight: 0.25 lbs Available At: GrabAGun