I have a carbine, and I know that rifle front and back. I've got every feel down and I know every sound it makes. The one thing I don't know (believe it or not) is how to uncock it. It's so simple with a bolt action but I have no idea how to do this on a semi automatic. Dry firing it would work but it's hard on the firing pin (or is it...?) and dismantling it to uncock it would be a waste since as soon as I put it back together, I would check the chamber (as habit) causing it to cock again. Anyone got any advice to uncock a semi-automatic rifle? Thanks in advance.