So I took my Glock to the range today for the first time since I got it (off of ee). One of the RSO's came by to chat for a minute when he noticed the colour of the slide at the front was discoloured. Now this is my first gun and I have no clue if this is normal or not (guessing not) but he said that his gen 3.5 doesn't do it. So I figured I'd come see what cgn says about it. It does rub off.




















































