This KWA MP7 Hop Up Adjustment Tool is designed for the Umarex H&K MP7 GBB SMG. Unlike many other airsoft guns, most KWA GBB airsoft guns require a tool to adjust the hop-up.
The MP7 Hop Up Tool is lightweight polymer. It can be carried in a pocket, or drill a hole through the handle and keep it on a keychain. The handle is ridged for grip, even with gloves or wet hands. Pick up a spare in case your friends borrow yours to pick their nose. It can also be used as a sundial with the proper configuration.
All KWA parts are top-quality replacement or repair parts, and are the only parts recommended for use with KWA Gas Blowback Pistols.