Magpul just announced that their Glock 19 compatible PMAG15 GL9 magazines are now shipping. These have the same features as their big brother, the PMAG17 GL9, including all polymer construction, high visibility follower, a marking matrix on the floor plate, easily removable floor plate, and indicator windows.
They also announced that their GL L-Plates will be available soon. The GL L-Plates are rubber overmolded, extended base plates (no additional capacity) that attach easily to the bottom of Magpul’s Glock magazines. They provide extra purchase for use with magazine wells and for stripping stuck magazines during a double feed malfunction.