My email: I received the replacement mag and it works great. I am sending back the bad one. The only problem I have with my SU-22 is that it will not take ANY type of CCI .22lr rounds. It will only take Federal, or Remington XL. The CCI actually gets stuck in the feed and I have to use a knife to get it out. It has also bent 4 rounds of ammo. I have a picture of this that I took with my phone. http://i39.tinypic.com/a0doup.jpg I really honestly am at a loss as to why the CCI will not feed. I have tried twice and no luck. Even after 2 cleanings. I will say that it does perform fantastic with the Federal, but I am partial to the CCI rounds. I have tried CCI Mini Mags, CCI Velociter, and CCI Stinger and none of these will feed and have actually made a small indentation on the feedramp from the misfeeds that got bent in half. The serial on the barrel is V0D94 Thanks The response: they are ammo sensitive , stick with brands that work well, thanks All I can say is.....WOW....what a response. That was the response no editing at all (Cut and pasted). Maybe I should have called!