My dad really loves the 22 world and with a suppressor he's just all giggles. I've got him shooting centerfire subs suppressed which he likes, but in a perfect world a much lighter 22lr semi-auto with a can would be hilariously fun for him methinks. Buddy has one of the S&W 22 AR rigs seems to run great, but I'm green as can be on 22 semi-autos. Any other models I want to take a look at?