I purchased one of these a while back and am trying to get more info on it. It is the OD short 20X with the hose clamps and small tripod. I heard they are popular, or were, with the bullseye crowd. I also heard of a vendor at the Camp Perry shoots sells parts for these. (rubber eye pieces, ect.) I searched the internet and come up kinda blank. These have a serial number, but no model or part number on them. Would just like some more info on these, as it is a kick butt spotter for the indoor range at the club.