No problem!Sorry, Thought I did.. Maybe a mod can help me out here. Thanks
I don't have the U22 but have shot one. I'm a Beretta fan but have to say the grip a bit too small for my hand otherwise a nice gun. since it's a .22 pistol probably any red dot will do; no need to worry about the recoil and since most of your shooting will likely be (I'm guessing) under 25m again no need to wory about the size if the dot at longer distances...