Seems good quality, and has held it's zero so far, although only through about 150 rounds. I've seen bad reviews on Barska products, but this seems fine. Biggest complaint is the power switch, it moves pretty freely from side to side - there's no detent. My solution was to use thin nite-ize cord in a loop tied to a sling loop and then jammed into the switch space to keep it off when not in use.