I purchased a Hakko Panorama multi-reticle site and reticle worked for like a day. I never mounted it on anything because I wanted to get used to the iron sites of my ar that I was going to mount it on before going fancy with the dot site. But when I finally went to mount it the site doesn't work, so I figured maybe it needs a new battery but that didn't work either. The company is in japan, does anyone know if there is a distributor here in the states that does exchanges or repair.