This fake suppressor is designed specifically for a tactical pistol with a threaded barrel M13.5x1 LH. It is of precision billet construction, 6" in length, about 1.25" in diameter with a knurled thread head and finished in matte black similar to the specs of an actual suppressor. Weight about 7.5 ounces, 6" in length, 1.125" in diameter. Fits most barrels threaded in M13.5 x 1 LH tpi.