KAK SHOCKWAVE 2.0 BLADE - ****NEW Design, sleeker, slimmer blade. ATF approved for use on almost all pistols. May require specific pistol adapters, depending on your application. (Black) Blade Pistol Stabilizer with the KAK dimpled adjustable Buffer Tube (up to 3 of adjustment"). End to end from 7.5" up to 10.5" Threads into any mil spec or commercial female buffer tube threads. Includes, (Black) Blade Stabilizer, & buffer tube only. Castle nut sold separately.