Shockwave is proud to introduce the patent-pending Blade pistol stabilizer. Made from high-strength glass-reinforced polymer, the Blade is manufactured to exacting tolerances and fits all pistols equipped with a standard AR-15 pistol buffer tube (up to 1.25a ^2 in diameter). No special receiver extension needed. No half-hour installation process. Just slip it on and tighten the large set screw for a rock-solid installation. This veteran-designed and U.S.A.-manufactured shooting aid improves your marksmanship by providing additional support of your pistol while you still hold and operate it with one hand. The Blade incorporates a vertical “fi Mfg: Kak Industry Llc.