At 7:20 into the episode, Kale tells Cox to remove the firing pin from Josh's gun. Cox opens the lever and bolt on Josh's modified Winchester 1892, reaches inside with his fingers and removes the firing pin in a few seconds. The actual process requires a screwdriver, a small pin punch, and hammer and it takes about 10 minutes. Remove the rear stock, then the main spring, the hammer, and the lower tang with trigger. Remove the lever and locking bars and then the bolt can be removed. Drive the retaining pin from the side of the bolt with a pin punch and then the firing pin can be removed.