Lowest price:$8.99Description: Hoppe's new Semi-Auto Solvent has been specially developed for today's high-performance, semi-automatic firearms. It does an excellent job of removing copper, lead and powder fouling, leaving absolutely no trace of residue. Competition shooters using semi-autos with extremely close tolerances will appreciate the difference, since even the slightest residue left behind by conventional cleaners can sometimes cause sticking or jamming in semis that are finely tuned for events. Though Semi-Auto Solvent was developed primarily for semi-autos, it can be used to clean any firearm.