Otis Technology FG-RC-243 Heat Resistant Bore Rope .243 cal/6.5mm 10″ Long Otis Fg-Rc-243 Ripcord Gun Cleaning System The Otis Technology Ripcord Gun Cleaning System Is Perfect For Those Times In The Field When You Need A Quick And Effective Clean. This Convenient Gun Cleaning Tool From Otis Cleans From Breech-To-Muzzle In One Quick And Easy Pass. The Otis Technology Ripcord Gun Cleaner Is Made With Molded Rubberized Core And Nomex Fibers That Come Together Create A More Effective Way To Trap And Remove Fouling. Features: 10″ Of Aggressive Cleaning Surface Heat Resistance Up To 700 Degrees F Helix Shape Engages Rifling Through The Barrel Nomex(R) Fibers Act As Both A Brush To Loosen And A Patch To Capture Fouling Particles Equipped With 8-32 Threaded Ends To Fit All Otis Cleaning Components”