V.H.
I had the same problem with my son he was so excited to pretend toys were guns. I didn't know all the gun safety rules so I didn't want him to play with them. If I got him a little toy guy and it had a gun I would take fingernail clippers and cut off the little gun. Then I went to a website about gun safety and got a look at some of the safety rule and picked out a few big ones to teach him and every time he didnt follow them I took the toy gun away. After a while it works and he learned so - good luck