The Valken BY HICAPA Suppressor and Barrel Kit is an airsoft gun accessory to install a suppressor onto your Valken BY HICAPA or other Tokyo Marui compatible HICAPA airsoft pistols. This mock suppressor is for airsoft only, and comes in a counter-clockwise 10mm thread. The kit comes with the suppressor, outer barrel, inner barrel, thread cover, hop-up unit, screws, and O-Ring.