Congrats on your new Glock. My first Glock was the 17. I was so happy with it that I bought the 19. Unfortunately my hand is to big and I get slide burn when I shoot it. DOn't have this problem with the 17. So. Soon I will be buying a laser beavertail combo for the 19 so I can shoot without getting burnt.
I wish some one made just a beaver tail for the Glock, cause I would love to do this without having to pay 160+ for the laser that I don't really need.
Any way. You said you only had one mag. Did you buy this used? cause it if was new you should have received two mags.