User blog comment:The Awesome X!/Why don't the monsters use mortal weapons?/@comment-24339098-20130717143833/@comment-4649443-20130722032237

The Hunters took care of it. I don't know how, but they did. Maybe they used some sort of fart arrow the ruined it. BTW, the shotgun was used by CHB, so they can use it.

P.S> Does anyone think that the shotgun was the same one Percy's mom used?