If your going Glock! I suggest the 19 over the 17, basically the same gun in a smaller more concealable package! The M&P Shield is an awesome shooter, with a good trigger for its size. If you can live with the external safety and low capacity compared to the Glock! But there are many others that are very good, depending on your needs! My personal preference, would be the Glock 19 for conceal and or HD! But like many have suggested, test fire as many as you can before you purchase! Good luck!