ProMag SIG P220 Magazine – .45 ACP – Steel

This ProMag magazine is supplied as a replacement or spare for the Sig Sauer P220 chambered in .45 ACP. It is built with a heat-treated steel body and polymer components where specified, and uses a chrome-silicon spring for durability. The design and materials reflect common service-style magazine construction suitable for range use and equipment redundancy.

Key Specifications

• Made by ProMag, listed as the manufacturer of this magazine.
• Designed to fit the P220 series from Sig Sauer.
• Chambering listed as .45 ACP in the source data.
• Classified as a detachable magazine.
• Main body material reported as steel in product attributes.
• The follower, lock-plate, and base-plate are molded from DuPont Zytel polymer per the supplied description.
• The spring is wound from chrome-silicon wire and is described as heat-treated for strength.
• Body steel is described in source copy as heat-treated.
• Manufacturing origin is listed as Made in the U.S.A. in source text.

This magazine provides a straightforward replacement option for owners of P220 pistols who require durable, service-style construction and polymer component interaction with a steel body. Its combination of heat-treated steel, polymer components, and a heat-treated chrome-silicon spring is presented in the source data as intended to deliver dependable function and long service life for routine range and carry needs.