Sig Sauer builds this factory magazine (part no. MAG-MOD-C-43-13) for the P320 Compact and P250 Compact, holding 13 rounds in a blued steel body sized for both .40 S&W and .357 SIG. Because both cartridges share the same case dimensions and magazine geometry, this single magazine covers either chambering on the Compact frame. Manufactured to Sig’s own factory tolerances, it feeds and seats exactly as intended, giving Compact-frame owners a genuine factory spare. For Sig Sauer P320 Compact and P250 Compact owners, this handgun magazine is a dependable factory-correct spare.

Key Specifications

• Chambered for .40 S&W and .357 SIG, sharing one magazine geometry.
• Holds 13 rounds, a full capacity for the Compact frame.
• Fits both the Sig Sauer P320 Compact and P250 Compact.
• Finished in blued steel for a traditional, corrosion-resistant body.

Frequently Asked Questions

Does one magazine work for both .40 S&W and .357 SIG? Yes, both cartridges share the same case head dimensions and run through this same magazine.

Is this a genuine Sig Sauer factory magazine? Yes, manufactured by Sig Sauer to Compact-frame specifications.

Buy the Sig Sauer P320/P250 Compact 13-Round .40 S&W/.357 SIG Magazine

A factory-correct spare keeps a .40/.357-caliber Compact frame topped off and ready. Order it from our Lubbock, Texas gun shop for fast, insured shipping.