As embarrased as I am, I have to ask. I bought a G17 a couple of years ago and "stored" it until yesterday. Then I try to work the slide and it is stuck. Long story short, I finally got it to work, but, a piece fell out. Not sure whether is is a shipping plug or what. So, i have this silver piece about the size of a 9Mil casing, with an orange "pad" at the primer end. Is is a shipping plug or is is something important? Thanks Wanna kill these ads? We can help!