This replacement or spare magazine is compatible with your Sig Sauer P226. It is constructed of heat treated steel with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.
Specifications:

Caliber	9mm Luger
Capacity	15
Finish	Blued
Model	Sig P226
Material	Steel
Type	Detachable
Model Fit	P226
Brand Fit	Sig
Max Capacity	15