Improve your marksmanship with your AR pistol using this revolutionary stabilizing pistol brace. Manufactured from high-strength polymer, the Blade is made to the same exacting tolerances as the original. Fits on to a standard round buffer tube (up to 1.25″ in diameter) using a large set screw. It will not fit onto a multi position carbine buffer tube! No other extensions or items needed. Features 3 slots that can be used for arm straps.