

Product Description
The ProMag Industries SIG-A20 is a 21-round magazine designed to fit Sig Sauer® P320™ 9mm pistols. Built with a durable steel body and a heat-treated chrome silicon wire spring, this magazine is engineered for reliable feeding and long service life. ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer defects, with each step of the assembly process checked to maintain consistent quality.
Product Highlights
- 21-round capacity magazine for Sig Sauer® P320™ 9mm pistols
- Rugged steel magazine body with a black oxide (blued) finish
- Heat-treated chrome silicon wire spring for strength and dependable cycling
- Injection-molded magazine follower to support smooth, consistent feeding
- Manufactured and assembled in the USA; backed by ProMags lifetime guarantee
Specs
- Brand Name: ProMag Industries
- Manufacturer Part Number: SIG-A20
- UPC: 708279015038
- Compatibility: Fits Sig Sauer® P320™ 9mm pistol
- Caliber: 9mm (9x19)
- Capacity: 21 rounds
- Construction: Steel body
- Spring: Heat-treated chrome silicon wire
- Finish/Color: Blue steel / black oxide
- Country of Manufacture: USA
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