As the senior FI on station I maintain the gun locker. Basically all the shotguns and rifles, gas guns. Once a month we break down every gun and clean. If it gets shot in between we do it. We also check every guys gun for function and cleaning. There are four of us so doing it is pretty easy. We are getting over run with Bangers from the city so guys take it pretty serious. Hell, I remember the old timers never cleaning the revolvers. Things were alot quieter in those days.