ProMag Industries Sig Sauer P365 9mm 20-Round Blue Steel Magazine, Black Oxide Finish SIG-A21

Product Description

The ProMag SIG-A21 magazine is designed for Sig Sauer P365-series 9mm pistols and offers a 20-round capacity for extended range time and fewer reloads. Built with a heat-treated steel magazine body and a black oxide (blue steel) finish, it is engineered for durability and consistent performance. Inside, an injection-molded follower and a precision-wound spring made from heat-treated chrome silicon wire help promote reliable feeding. Made in the USA and backed by ProMags lifetime guarantee against manufacturers defects.

Product Highlights

• 20-round capacity 9mm magazine compatible with Sig Sauer P365 / P365X / P365XL pistols
• Heat-treated steel magazine body with black oxide (blue steel) finish for corrosion resistance
• Injection-molded magazine follower for smooth, consistent operation
• Heat-treated chrome silicon wire spring for long-lasting tension and reliability
• Made in the USA and backed by a ProMag lifetime guarantee against manufacturer defects

Specs

• Brand Name: ProMag Industries
• Manufacturer Part Number: SIG-A21
• UPC: 708279015908
• Firearm Fit: Sig Sauer P365 / P365X / P365XL
• Caliber: 9mm
• Capacity: 20 rounds
• Body Material: Heat-treated steel
• Finish: Black oxide (blue steel)
• Follower: Injection molded
• Spring Material: Heat-treated chrome silicon wire
• Country of Manufacture: USA

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