This replacement or spare magazine is compatible with your walther arms p99.
Caliber: 9mm Luger
Capacity: 10rd
Finish: Black
Model: P99
Material: Steel
Type: Detachable
Model Fit: P99
Brand Fit: Walther
Capacity: 10
Caliber: 9mm Luger
Capacity: 10rd
Finish: Black
Model: P99
Material: Steel
Type: Detachable
Model Fit: P99
Brand Fit: Walther
Capacity: 10