Sig Sauer P365 17-Round Magazine 9mm Luger Blued Steel Extended

The Sig Sauer P365 17-round magazine transforms the compact P365 pistol into a higher-capacity platform without compromising concealability. This factory magazine extends capacity by 7 rounds over the standard 10-round magazine while maintaining the reliability Sig Sauer magazines are known for.

What Makes This Different

Unlike aftermarket alternatives, this factory Sig Sauer magazine undergoes the same rigorous testing as the original equipment magazines. The blued steel construction provides superior durability compared to polymer alternatives, while the extended baseplate adds minimal bulk to the grip. Factory specifications ensure consistent feeding and reliable ejection across all ammunition weights commonly used in 9mm Luger.

Key Features

• 17-round capacity increases firepower by 70% over standard P365 magazines
• Blued steel construction resists corrosion and provides long-term durability
• Factory Sig Sauer specifications ensure perfect fit and function
• Extended baseplate provides improved grip surface and control
• Compatible with all P365 variants including P365X and P365XL
• Witness holes allow visual ammunition count verification
• Heat-treated spring maintains consistent tension through thousands of cycles

Field performance demonstrates reliable feeding with both ball and hollow point ammunition across temperature extremes. The extended magazine proves particularly valuable for competitive shooting where reload frequency matters, and for duty applications requiring maximum ammunition capacity. The blued finish resists environmental factors while the steel construction handles repeated drops and impacts better than polymer alternatives.

Technical Specs

• Capacity: 17 rounds of 9mm Luger
• Construction: Blued steel body with steel spring
• Compatibility: Sig Sauer P365, P365X, P365XL
• Overall length: Approximately 5.8 inches
• Weight: 4.2 ounces empty
• Baseplate: Extended polymer with textured grip surface
• Country of origin: USA
• Manufacturer part number: 8900804

This factory magazine eliminates the reliability concerns associated with aftermarket alternatives while providing substantial capacity increase. Professional shooters and law enforcement personnel choose factory magazines for their proven track record and consistent performance under stress.