Sold my 15-22 and have a Lucid HD7 red dot with 5 reticles and a lucid 2-5X magnifier on a vortex flip to the side mount. Worked great on my SW 15-22. You can co-witness with your iron sights.
Both in great shape and ready to mount. Pictures are here:
FS Lucid HD7 with Lucid 2-5x magnifier and Vortex mount - RimfireCentral.com Forums
Looking for 250
shipped. You can contact me via text at two14906933four.
Scott