ProMag SIGA24 40-Round 9mm Magazine for Sig Sauer MPX - Black Zytel

The ProMag SIGA24 delivers extended firepower for Sig Sauer MPX platforms with its 40-round capacity and reinforced polymer construction. This high-capacity magazine eliminates frequent reloading during extended range sessions and competitive shooting events.

What Makes This Different

Constructed from DuPont Zytel polymer, this magazine offers superior impact resistance compared to standard steel magazines while reducing overall weight by approximately 30%. The extended body design maintains reliable feeding through a heat-treated steel spring system rated for over 10,000 compression cycles. Anti-tilt followers prevent jamming and ensure consistent cartridge presentation to the chamber.

Key Features

• 40-round capacity reduces reload frequency during training and competition
• DuPont Zytel polymer body resists cracking and environmental degradation
• Heat-treated steel spring maintains tension through extended use
• Anti-tilt follower design prevents feeding malfunctions
• Textured grip panels provide secure handling during tactical reloads
• Drop-free design enables rapid magazine changes
• Compatible with all Sig Sauer MPX variants and generations

Field testing demonstrates reliable function across temperature ranges from -20°F to 140°F without feeding issues. The extended capacity proves advantageous for competitive shooting disciplines, law enforcement training scenarios, and pest control applications where shot volume matters. Polymer construction resists corrosion in humid environments while maintaining dimensional stability.

Technical Specs

• Capacity: 40 rounds of 9mm Luger ammunition
• Material: DuPont Zytel reinforced polymer body
• Spring: Heat-treated steel with anti-fatigue coating
• Follower: Self-lubricating polymer with anti-tilt design
• Overall Length: Approximately 8.5 inches
• Weight: 4.2 ounces empty
• Compatibility: Sig Sauer MPX (all generations)
• Finish: Matte black polymer
• Country of Origin: USA

This magazine addresses the MPX platform's need for extended capacity without compromising reliability or adding excessive weight. ProMag's established reputation for aftermarket magazines ensures consistent quality control and dimensional accuracy for proper fit and function.