My SR9 makes one hell of a rattle with a full mag inserted. The noise isn't from the inside of the mag, but from slop of the mag within the frame. Forward & back, and side to side. Very load and annoying. There is no way to carry this gun, as there is an audible "click" every step you take. It's with four different mags, and will rattle empty as well, it's just louder from the weight of a full mag. Any other SR9 owners have this problem, before I call Ruger about it? BTW, the mag appears to be locking up fine within the well.
MH