Sig Sauer P320/P250 10rd Magazine 40S&W/357Sig Blued Steel

The Sig Sauer MAGMODF4310 delivers reliable feeding and consistent performance for P320 and P250 pistols chambered in 40S&W and 357Sig. This factory magazine maintains the same quality standards as the original equipment, ensuring seamless integration with your firearm's feeding system. Built with blued steel construction, it provides the durability needed for extended training sessions and duty use.

What Makes This Different

Factory Sig Sauer magazines feature precision-engineered feed lips and follower geometry that aftermarket alternatives often fail to match. The blued steel body resists corrosion while maintaining structural integrity under repeated loading cycles. Unlike polymer alternatives, steel construction prevents feed lip spread that can cause feeding malfunctions during high-volume shooting.

Key Features

• 10-round capacity optimized for 40S&W and 357Sig cartridges
• Blued steel body construction for maximum durability and corrosion resistance
• Factory-spec feed lips engineered to Sig Sauer's exact tolerances
• Compatible with both P320 and P250 pistol platforms
• High-visibility witness holes for quick round count verification
• Heat-treated steel spring maintains consistent tension over thousands of cycles
• Polymer follower reduces friction and prevents binding during feeding

This magazine performs consistently across temperature extremes and environmental conditions that can affect lesser magazines. The steel construction handles the higher chamber pressures of 357Sig loads without deformation, while the precision manufacturing ensures reliable cycling with both calibers. Law enforcement agencies and competitive shooters rely on factory magazines for critical applications where feeding failures aren't acceptable.

Technical Specs

• Capacity: 10 rounds
• Caliber: 40S&W and 357Sig
• Body Material: Blued carbon steel
• Follower: High-impact polymer
• Spring: Heat-treated steel
• Compatibility: Sig Sauer P320 and P250 pistols
• Overall Length: Approximately 4.2 inches
• Weight: 3.2 oz (empty)
• Manufacturer: Sig Sauer, USA

Factory magazines eliminate the guesswork associated with aftermarket options that may require fitting or adjustment. The MAGMODF4310 drops in ready to use, backed by Sig Sauer's reputation for manufacturing precision. Smart shooters stock multiple magazines to minimize downtime during training and competition.