I have a hard time believing you have a Jimenez JA-22 that has been flawless.
I just recently sold mine because I never shot it. It never got through a single magazine without a feeding issue. Both magazines had issues and the gun would fail to go into battery all the time. Total piece of junk.
I bought it knowing that it would likely be used just for fun at the range and while just shooting it was fun, it was never reliable.
Brain (Use this one the most)