Did Glock enter this segment of the market because there was a need for a single stack 9MM with a narrower frame and slide, or just to capture a market share. On Glock's part there is nothing innovative pertaining to a single stack 9MM other than it being offered by Glock.If you learn how to dress around you're daily you can easily carry a double stack 9MM which allows for a larger amount of rounds to be carried, thus less of a need to carry an extra magazine.
Just a view from the cheap seats. Glock 19
Just a view from the cheap seats. Glock 19