Things I liked: the target knobs, micro click adjustments. Full equal of the williams sights for half the money.
Things I would have changed: only deepen the mounting groove so it can fit more guns.
What others should know: Installed on a cummings cal 177 now shooting 2in groups at 30 yrd 716fps what more could you ask of a $30.00 beater air rifle. Ill be mounting one on my beeman 1100 s too replace 3x9 scope and laser im currently using. you cant imagine how good this sight is untill you have tried it!!!
Things I liked: solid good looking rifle. power a plenty.
Things I would have changed: the sights are not very good. im going to toss the scope and rear sight. and install a mendoza appeture sight with target knobs.
What others should know: I think its a bit hard to cock. but thats just me. Look for at least a 500 rd breakin period. This is a powerfull full sized springer rifle. not for kjds I think.And it does dance about with you on discharge. It will take while for the rifle to settle down and start shooting decent groups. Chi -com air rifles seem to be pot luck. IF you get a good one its a real bargin and your tickled to death with it or you get a lemon and end up returning it. I think there are more good ones than lemons. Its worth your time and effort too try one. With good sights and pellets it likes you can come out meeting your air gunner needs for $100 or more less than the europian guns.