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

The Sig Sauer MAGMODSC4310 magazine delivers reliable feeding for P320 and P250 Compact pistols chambered in 40 S&W and 357 SIG. This factory magazine maintains the tight tolerances and quality control standards that Sig Sauer pistols demand for consistent performance.

What Makes This Different

Factory Sig Sauer magazines feature proprietary spring tension and follower geometry engineered specifically for P320 and P250 platforms. The blued steel construction provides superior durability compared to polymer alternatives, while the witness holes allow for quick round counting. Internal components undergo the same quality control processes as Sig's pistol manufacturing, ensuring dimensional consistency that aftermarket magazines often lack.

Key Features

• 10-round capacity optimized for 40 S&W and 357 SIG cartridges
• Blued steel body construction resists corrosion and impact damage
• Compatible with both P320 and P250 Compact frame sizes
• Factory-tuned spring tension prevents feed failures and double-feeds
• Witness holes positioned for accurate round counting
• Drop-free design ensures reliable magazine changes under stress
• OEM follower geometry matches chamber specifications precisely

This magazine performs consistently across temperature ranges and ammunition types commonly used in duty and competition environments. The steel construction maintains shape integrity even when fully loaded and stored long-term, unlike polymer magazines that can develop feed lips spread. Law enforcement agencies and competitive shooters rely on factory Sig magazines for their proven track record in high-round-count scenarios.

Technical Specs

• Capacity: 10 rounds
• Caliber: 40 S&W, 357 SIG
• Construction: Blued steel body with steel internal components
• Compatibility: P320 Compact, P250 Compact
• Length: Approximately 4.6 inches
• Width: 1.2 inches
• Finish: Blued steel exterior
• Manufacturer: Sig Sauer, Inc.

Factory magazines eliminate the guesswork of aftermarket compatibility issues while maintaining warranty coverage for your pistol. Professional users who stake their safety on equipment reliability choose OEM magazines for their proven performance record.