This replacement magazine is designed for Sig Sauer P320 pistols chambered in 9mm Luger. It provides a 21-round capacity and is constructed with a heat-treated steel body finished in blued coating. The magazine uses an injection-molded follower and a spring formed from heat-treated chrome-silicon wire and is manufactured in the United States.
Key Specifications
- The magazine capacity is 21 rounds.
- Designed to fit Sig Sauer P320 pistols.
- Chambering is 9mm Luger (9×19).
- The magazine body is constructed of heat-treated steel with a blued finish.
- The follower is an injection-molded follower.
- The magazine spring is formed from heat-treated chrome-silicon wire.
- Overall dimensions are approximately 1.25 x 2.30 x 6.85 inches.
- The magazine weight is approximately 0.25 lb.
- Origin is Made in USA.
- State restrictions include no direct ship to CA, RI, WA; no sale to IL and OR.
Built for OEM fit and reliable feeding, this ProMag magazine offers extended capacity while maintaining straightforward construction for easy maintenance. Its steel body and treated spring materials are specified to deliver consistent service life for range use, training, or other lawful applications where local and state regulations permit.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




