A metal jag, draped with a proper sized patch, completely covers the entire bore for efficient, thorough cleaning For ease of use, the unique KleenBore design incorporates a special barbed point at the tip of the jag to secure the cleaning patch and prevent solvent soaked patches from falling off Model UPC Description JAG17 26249003688 .17/.204 Caliber (#3-48 thread) JAG226 26249001073 .177/.200 Air Jag/Pellet Pusher - No Barb (#3-48 thread) JAG227 26249001080 .22-.25 Caliber JAG228 26249001097 .270-.32 Caliber JAG229 26249001103 .38/.357/9mm JAG230 26249001110 40/.41/410/10mm JAG231 26249001127 .44/.45 Caliber JAG250 26249004067 .50 Caliber