I'm getting a can for my Ruger 10/22. I'd like to have the option of somehow SAFELY stopping the semi-auto action to prevent the associated cycling noise. My thought is some kind of removable pin or stud through the receiver and into or behind the bolt. Before I contact my favorite gunsmith, does anyone have ideas? (And, yes, I've considered getting a bolt action, but I'd like to be able to use my 10/22.) Also, would such a conversion violate any FFA laws?