Im looking at getting a police trade in, it is a 2nd gen Glock 22 with a Police badge engraved on the right side of the slide.  What is a fair price to ask and do you think it is worth more as a collectible.

A fair price would be about $425ish.  The badge engraved on the slide would only be a collector's item to the person it was presented to (I'm assuming it was a presentation piece).

Actually, Glock will engrave a badge on the slide for any department if they purchase a certain number of pistols.  I am not sure what that number is.

It looks just like this one on gun broker.

 

From gunbroker.
This is one of several Milwaukee Police Department Glock 22's. The serial number on all the pistols ends "MPD" and has a Milwaukee Police badge engraved on the right side of the slide. All pistols have NY-1 trigger springs and one 15 round "LE" magazine. Buyer must provide a money order, Hard Copy signed FFL and over night shipping. All sales are final, no refunds, exchages or warranties. ASK QUESTIONS BEFORE BIDDING. Good Luck!

If you are a firefighter I believe that you would qualify for the public service discount.  Find your local LE Dealer and you can get them for this price:

OMB Officer Price

365 for a police trade in






here is the add

I just sold mine for $250. There not worth anymore then a used Glock trade in