The Vortex is the most copied, but never equaled, flashhider on the market. The Vortex is machined from 8620 bar stock steel, then case-hardened to provide a tough core and hard surface for maximum strength, black-parkerized finish. 21/4" long, .861" diameter.  It is Sound Suppressor capable. Four specially angled flutes dissipate the gas but contain the unburned powder allowing increased residual burn for less visible flash. The Vortex incorporates a helix design essentially tightening itself when the weapon is fired and helps align exiting barrel gas to improve accuracy with all bullet types. Fits all standard ½” x 28TPI AR style threaded barrels. Black phosphate finish.