Hello, my g23 is jamming often and i'm hoping someone here can tell me why. The rounds fail to feed, they get halfway inserted in the chamber, and get stuck while the shell is resting on the ramp, and the bullet touching the top of the chamber. Tried with a clean gun, multiple mags, 2 recoil springs, 3 brands of ammo, different grips.... but I still get the same problem. A jam every 2-3 mags. I'm using an aftermarket extended bar-sto barrel, as required by law. I have no choice but to use it. (not my pic, but my jams look similar) Any ideas on how to fix this problem?