I had one, bought it as a tdr but it's not idea as that, I had to do a little mod to the shroud as it had accuracy problems at first but that was a easy fix, One thing I found is the more I used it I seemed to find it was getting more and more accurate , Was .22 cal and was very good even out to about 45 yards , Very high shot count, As mine was new I removed the bottle but and screwed the bottle on and off the action for quite a few times, When new they can be easily cross threaded . I liked the gun a lot , For me the loss of air when taking apart was not to much of an issue it was more of the hard cae it was supplied in, Would have rather had a back pack of some kind, Its a little noisy when firing, But hey its not a gun I wouldn't have again,