As expected for the price, but the customer service is beyond bad. - AGM Global Vision Rattler TC19-256 1x19mm 30mm Tube Thermal Imaging Clip-On

The image quality is pretty rough, but what do you expect for the price. Built solid, easy to use, and holds zero. However, it is billed as a short range system yet the scope mount mine arrived with is for a 50mm scope. Mine also arrived without the rubber shims. I contacted customer service who responded a couple of weeks later and told me that I could shim that mount down to 30mm (I was trying to mount it to a 30mm straight walled scope). Soooo a good 1/2 of rubber shims? Riiight. I asked if they would trade me for the correct mount, and I also asked about the shims since my thermal arrived without them. Not kidding: a month later they responded and told me they would ship me the shims (didn't bother to answer my other question). That was a couple of months ago, still haven't gotten the shims.