This is a factory extended 9mm 17-round magazine for Walther PPQ M1 pistols
Delivering cutting-edge features and world-class German craftsmanship, the Walther PPQ is rapidly becoming a favorite among top shooters and enthusiasts.
These magazines feature a maximum factory capacity of 17 rounds, with a special polymer finger rest/magazine extension, durable stainless steel construction, and the same anti-friction coating that makes all factory PPQ magazines so easy to use.
Note: These magazines WILL NOT work with PPQ M2 pistols (those with button mag release). Some users report PPQ M1 magazines working with P99 pistols.