CVA Barrel Blaster Quick Clean Black Powder Cotton Cleaning Patches – AC1687 Description Proper cleaning is key to keeping any black powder firearm looking good and shooting well. CVA Barrel Blaster is a series of solvents and rust preventatives specially formulated for black powder firearms. Run these pre-saturated patches down the barrel for quick and easy cleaning whether at home or the range. FeaturesPre-saturated patches deliver the maximum amount of solvent to the bore where it’s neededConvenient re-sealable jar100 Cleaning PatchesProtects against rust, powder residue, fingerprintsSize .44-.56 Cal.