Need to know more info to give a fair value. Really need to know what Generation? How much has it been used? How many magazines come with it? What capacity magazines are they?
Edit: I didn't pay attention to the question. The Glock 26 is the compact 9mm so that answers a few of my questions. Still need answers to how much gas it been used and what comes with it. It still will either be Gen 3 or Gen 4. Which one should matter a little.