ProMag SIG21 Standard 10rd 9mm Luger Fits Sig P938 Blued Steel Powders This large-format folding knife is

This large-format folding knife is built around SOG's ultra-strong XR locking mechanism

Our 15 MOA rail is manufactured from strong

Jimping enhances the thumb's grip on top of the blade making cutting slip-resistant

Slide the Hub over the SureFire muzzle adapter

Carbon fiber liners reduce the weight of the Pentagon XR LTE by 35% when compared to the standard Pentagon XR

ProMag SIG21 Standard 10rd 9mm Luger Fits Sig P938 Blued Steel Powders This large-format folding knife isThis replacement or spare magazine is compatible with your Sig Sauer P938. It is constructed of heat treated steel with injection molded mag follower and mag spring formed from chrome silicone wire. Made in the USA.