ProMag builds this magazine (part no. SIG-21) for the Sig Sauer P938, chambered in 9mm Luger and extended to a 10-round capacity in a blued, heat-treated steel body. It runs an injection-molded follower and a spring formed from chrome-silicone wire, made in the USA. For ProMag owners of a Sig Sauer P938, this handgun magazine is an extended-capacity spare.

Key Specifications

• Chambered in 9mm Luger, matching the P938’s factory chambering.
• Holds an extended 10 rounds.
• Fits the Sig Sauer P938.
• Built from heat-treated steel with a blued finish.
• Runs an injection-molded follower.
• Spring formed from chrome-silicone wire.
• Made in the USA.
• Weighs approximately 0.17 pounds.
• Manufactured by ProMag.

Frequently Asked Questions

What pistol does this magazine fit? The Sig Sauer P938, chambered in 9mm Luger.

How many rounds does it hold? An extended 10 rounds.

Buy the ProMag Sig P938 Magazine

A blued-steel spare with extended 10-round capacity, this ProMag magazine is a solid option for any Sig Sauer P938 owner. Order it from our Lubbock, Texas gun shop for fast, insured shipping.