While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
As already mentioned, Target Sports is a indoor range that rents a variety of handguns. As far as I know Kelly's Sporting Goods over by Windsor does the same. Easthill Outdoors near Orono has a new indoor range ready to open up very soon, I imagine they will also have a pro shop with gun rentals.
In my experience. If you don't know anyone/anywhere to try them out. Handle a bunch, buy the one that feels the best and go from there. If you buy decent products they tend to hold their value well. Unless the manufacturer decides to slash their prices out of the blue (thanks a lot Glock, lol)