ProMag SIGA23 32-Round 9mm Magazine Sig P365/P365X/P365XL Blued

The ProMag SIGA23 transforms the Sig Sauer P365 series into a high-capacity platform with 32 rounds of 9mm ammunition. This extended magazine addresses the capacity limitations of factory magazines while maintaining reliable feeding and function. Built with blued steel construction, it delivers the durability needed for extended range sessions and competitive shooting applications.

What Makes This Different

Unlike standard 10-15 round P365 magazines, the SIGA23 more than doubles ammunition capacity without requiring firearm modifications. The extended body design incorporates a reinforced spring system engineered for consistent feeding through all 32 rounds. ProMag's manufacturing process includes heat-treated steel components and precision-formed feed lips that maintain dimensional stability under repeated loading cycles.

Key Features

• 32-round capacity increases firepower significantly over factory magazines
• Blued steel construction with corrosion-resistant finish
• Compatible with Sig Sauer P365, P365X, and P365XL pistols
• Extended body design with finger rest for improved grip control
• Heat-treated spring maintains tension through extended use
• Precision-formed feed lips ensure reliable ammunition presentation
• Drop-free design allows rapid magazine changes

Range testing demonstrates consistent feeding with various 9mm ammunition weights from 115 to 147 grains. The extended length provides additional grip surface during reloads, particularly beneficial in competitive shooting scenarios where speed matters. The blued finish resists moisture and handling wear better than polymer alternatives, maintaining appearance and function through thousands of loading cycles.

Technical Specs

• Capacity: 32 rounds of 9mm Luger ammunition
• Material: Heat-treated blued steel body and spring
• Compatibility: Sig Sauer P365, P365X, P365XL
• Overall length: Approximately 6.5 inches
• Weight: 4.2 ounces empty
• Finish: Traditional blued steel
• Country of Origin: United States

The SIGA23 represents a practical solution for shooters requiring maximum ammunition capacity from their P365 platform. ProMag's established reputation in aftermarket magazine manufacturing backs this product with proven reliability standards. Extended capacity magazines like this fill specific roles in competitive shooting and training applications where frequent reloading interrupts performance development.