.40/.41/10mm Semi-Autos/Revolv. . The police and tactical kits are tailored specifically to meet the cleaning needs of firearms that are used heavily in the field. The kits include a " diameter anda precision ground stainless steel rod. The rods feature a muzzle guard to prevent damage to the bore and a rotating handle that provides a precise clean, by allowing the rod to tightly follow rifling.Each kit features a 2 oz. bottle of powerful No.10 Copper Cutter to counter the effects of jacketed rounds. Also included is Break-Free's Lubricant/Protectant, a synthetic oil specifically formulated for modern firearms. The kits are finished with100% cotton patches, a double-ended nylon brush, a silicone gun cloth and caliber specific brushes and mops.