It's a Glock 27:
I believe I have lost one of the locking block pins!  I remember my pistol having two pins in one hole, a pin on either side with a small gap in the middle.  Now, I have only one pin!  

 To clarify, I am not missing the trigger pin- I am missing one of the locking block pins.  

The problem is, most diagrams show only one locking block pin---I distinctly remember having two locking block pins, with one on either side.  

Can anyone help me here?  

Ooooh, you said "small Glock", not....anyway, try at the handguns forum.

[url]http://handguns.ar15.com/forums/forum.html?id=13[/url]

The pin that I think you are referring to is a SINGLE pin with a detent in the center.

Item #28:




[img]http://www.topglock.com/images/exploded_diaagram.jpg[/img]

Sorry if this sounds cheesy-  

Just got off the phone with the rep- what an awesome company!

 Apparently, the pin was already broken in two when I bought the G27.  Apparently broken by someone with a punch and too much force.  

 The part is going out in today's mail- no charge at all, of course.  

Another happy Glock customer!