Great Gun, I do not have one at the moment, but I have fired more than a few.
Pretty much Jim March said everything that I could and more. I do agree to getting a spring kit for it down the road, and maybe grips, other than that you are good to go with the blaster rounds.
In all honesty, I do slightly prefer the old Security Six just a wee bit.
GP100Man, wow, who would have thought you liked GP's?
You may get a couple of Ruger haters on here, but pay them no mind, if YOU like the gun, that is the only thing that matters.