Blackout Defense Keymo Flash Hider 1/2-28 Muzzle Device

We are officially licensed and approved by Dead Air Silencers to incorporate their KeyMo mount design with our muzzle device designs. The KeyMo Flash Hider is compatible with Dead Air's KeyMo-equipped silencers.Note: Our 5/8-24 muzzle devices are NOT compatible with 9mm.FeaturesIn-house heat treated to condition H900 for a through-hardness of 45-47 HRC17-4 stainless steel that is heat treated to condition H900 exhibits 14% higher ultimate tensile strength over hardened 4140 steelEvery 90deg corner is machined with undercut profiles to improve seal and engagement with the suppressorClosed-prong design reduces flash and eliminates tuning-fork "ping"Shim kit includedSpecificationsMaterial: 17-4 stainless steelThreads: 1/2-28 & 5/8-241/2-28 bore diameter: 8.50mm (.334")5/8-24 bore diameter: 9.0mm (.354), Not for use with 9mm ammunitionFinish: H900 (appears as a deep gold/bronze color), Black Nitride finish - offers added lubricity, additional surface hardness, and corrosion resistance