"It's usually on the left, but that is no guarantee. Add to that that on some guns the switch being up means the safety is on, and on other guns the switch needs to be pointed down." Really, it would be a lot easier if there was a unified model for it. "If you aren't sure, treat it as loaded and bring it to me carefully. I've seen enough guns that I can usually figure it out." He is not bragging; his time in the armed forces and everything that has happened after that has put him around so many guns, he has experience with most of the common models.