This replacement or spare magazine is compatible with your FN FNS Compact. It features a polished, darkened steel body with low-friction follower and flat dark earth base pad.
Specifications:

Caliber	9mm Luger
Capacity	10
Finish	Black Body/FDE Base
Model	FNS-9C
Material	Steel
Type	Flat Base
Model Fit	FNS-9 Compact
Brand Fit	FN
Max Capacity	10