I have a no name brand reflex red dot site and when i works it is so fun to shoot with but after 5-10 rounds it looses zero. Is there a cheap (under $150) red dot site that holds zero? I prefer something like a Eotech clone if there is one that can hold zero. Has anyone ever tried a Eotech clone on the 15-22, and how does it work? I dont have the cash to put a expensive red dot or holographic scope on my 15-22.