lot of guns are fired, on the mayor of east town they decided that every fine of every gun would be all cgi, it was all special effects. they didn't use prop guns loaded with blanks. they maybe lost the authentic recoil, and alive muzzle flash that they would've cut from using plants, but they decided that it wasn't worth the risk. they added in all of that after the facts, and a lot of productions do that now. but, a lot of movie and tv says study do use real sets. the prague massacre will annals all the props, if there are guns been used, that person can sometimes be assisted by and it's a specialist, an arm or, someone who specializes in weaponry for film in tv sets. as you can imagine, the entertainment industry has very strict rules for using firearms onset. this is from some of the industry wide labor commission, these are some of the rules they put out about guns on set.