Things I liked:Does what it claims to do. Things I would have changed:Put some kind of valve. realizing it will cost more. What others should know:With a 20 oz tank it becomes a really long stock. My 5'8" tall brother puts the tank on his shoulder.
Things I liked:Great solid gun. Things I would have changed:Seems fine. What others should know:My smaller brother has a tough time getting groups with it ,and ate the scope once. I'm 225# and have no trouble getting good offhand groups with it.