Easy to use, all-inclusive kits are the proven way to touch up or completely reblue most guns. everything you need for a professional-looking, first-class job is included. choose from the fast-acting liquid gun blue kit and the deep, dense paste gun blue kit. note: Perma Blue liquid gun blue will not blue stainless steel, aluminum or non-ferrous metals. Features: The proven way for touching up or completely reblueing most guns The fast acting liquid gives a non-streaky, uniform blue-black finish Generous supply of everything you need to do a first class job