I BOUGHT ONE TODAY! FINALY I AM A Five-seveN OWNER TOO!
Squarish trigger guard is USG, funky round trigger guard is IOM and worth more. HTH...ok now i am confused. on the box, it says "IOM", in the instruction manual it says "IOM" but shows the new version. i have the new version. what the hell is it? "IOM" or "USG"? :-?