These new, "Coyote Colored,” Glock magazines were made to go with the new Glock 19X.
These magazines will also fit in your standard, “plain black Glock,” G17 or G34, as well as most other full, compact, and sub-compact 9mm Glocks. Because of that, they are also very popular simply because of their unique color. The 17 round magazine will fit flush with the G17/G34, but they will stick out a bit from the bottom of a G19, and a bit more in a G26.
The 19-round magazine has a factory +2 extension and it will protrude a bit from all models.