KL 3B Fast Deer

I have read and heard alot about the "Fast Deer", and am interested in getting one... I believe this rifle is also known as the KL-3B. Is this correct? ... Can someone with actual experience tell me a little about it? ... Is it generally accurate, or is it like a couple of other Chinese air guns I bought, where accuracy depended on if you were lucky enough to get one with a good barrel or not? Are they powerful enough in .22 cal. for small game hunting and vermin control at ranges to about 30 or 35 yards? Are they grooved for mounting a scope?... Where can I get the best price on one in .22 caliber, thru mail order? ... Any information is appreciated. ......... Thank You.