100-400 USD
400 or so.
100-400
You'll need to be more specific - there are 5 pistol models that use .40 S&W rounds. They are: -Glock 22 -Glock 23 -Glock 24 -Glock 27 -Glock 35
A Glock 27 is 1.18 inches at the top of the grip.
Absolutely!
Call Glock or go to Glocktalk.com
From the Glock company itself, it retails at $499.00
The 224 holster is for the Glock 17- different caliber, but I think a bit larger than the 27. Go to the Galco website, and look up the holster for your Glock.
A Glock 20 (third generation) will retail for about $600 in good condition.
100-400 USD
Your best answer may be to visit one of the on-line firearm auction sites, such as auctionarms.com, or gunbroker.com. Search for CLOSED auctions in the past 90 days, Glock 27, and see what they have recently sold for. Other resources include the Blue Book of Gun Values, and the Gun Trader's Guide.
100-760