WOOL BORE MOPS by BROWNELLS are designed for cleaning 10mm and .40 caliber firearms, effectively coating both ends of the barrel with cleaner or oil.
Made from virgin wool with a natural springiness, these mops conform to rifling grooves without scratching the bore, thanks to their looped and twisted brass shank and coupling.
These mops are suitable for both rifles and handguns, with a size of 3ΒΌ" (8.3cm) long and an 8-32 thread, except for .17 cal. which has a 5-40 thread.