I am looking for a fun, cheap 'tacticool' .22LR rifle. I have a handful of .22LR rifles, from a Iver Johnson Lil' Champ my father bought for me 30 years ago that I passed to my daughter, a Mossberg .22 bolt action and even my wife's Remington Nylon 66. However, I want a fun plinker for me. Something I can take to the range blow 500 rounds through and not cry when I have to restock my ammo supply. I am right now torn between the S&W MP 15-22, the GSG-5 or the Umarex Colt M4. The GSG-5 looks like a lot of fun, and I have a friend that has one, and he loves it, but right now, after the 'suppressor' recall, they are nearly impossible to find at any local shops. The S&W I have held and fired. I liked it, and it felt good, it is also plentiful around here going for the cheapest of the three. It is my current frontrunner. The newcomer to the list is the Umarex Colt M4. It comes with a carry handle, which for some reason I am a sucker for. The only point it is winning out in over the S&W is the fact that it is a nearly identical repro of an AR, complete with rear assist (is it just cosmetic?) and it looks like the handguard is replaceable. So that is it in a nutshell. I have tried finding reviews of the Umarex, but I can't find anything concrete. Info on the S&W is abundant. I may not have searched deep enough here, but I can't find much on the Umarex here either. Any opinions or insight would be welcome.