My S&W M&P 15-22. Just a hoot to shoot and even if you just want to empty a mag at steel targets rapidly, you don't break the bank. It was already my fav for fun, but having finally got a suppressor that fits it, it is now by uber-fav. Valuable, no. Collectible, no. Puts a smile on my face (and the face of others that shoot it) YES!!