This replacement or spare magazine is compatible with your Sig Sauer P238. 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	380 Automatic Colt Pistol (ACP)
Capacity	6
Finish	Nickel
Model	Sig P238
Material	Steel
Type	Detachable
Model Fit	P228
Brand Fit	Sig
Max Capacity	6