Pro Mag drum magazine is compatible with your Glock 43. It is constructed of DuPont Zytel polymer with full length steel internal insert, injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
Specifications:

Caliber	9mm Luger
Capacity	6
Finish	Black
Model	Replacement Magazine
Material	Polymer
Type	Detachable
Model Fit	G43
Brand Fit	Glock
Max Capacity	6