I just finished my Polymer 80 in a Glock 17 format and I needed a holster. The Polymer 80 is just a little wider than a Glock 17, and will not fit in a regular Glock holster. I started checking around a found that a Safariland Model 577 Pro Gls. might work. My holster arrived the other day and my Polymer 80 fits in it like a glove, I didn't have to adjust anything, no play and locks up fine.