ProMag SPRA4 20-Round Magazine .40 S&W Springfield XD Blued Steel

The ProMag SPRA4 delivers extended capacity for Springfield XD pistols chambered in .40 S&W, providing 20 rounds of reliable feeding in a durable blued steel construction. This aftermarket magazine extends your firearm's capacity beyond factory limitations while maintaining consistent performance.

What Makes This Different

Unlike polymer alternatives, the SPRA4 features all-steel construction with a blued finish that resists corrosion and withstands repeated loading cycles. The magazine body utilizes heat-treated steel that maintains dimensional stability under stress, while the internal spring system provides consistent tension across all 20 rounds. This design approach prioritizes longevity over weight savings, making it suitable for extended range sessions and competitive shooting.

Key Features

• 20-round capacity for .40 S&W ammunition in Springfield XD pistols
• Blued steel construction with corrosion-resistant finish
• Heat-treated magazine body maintains shape under repeated use
• Compatible with Springfield XD, XD(M), and XD-S models in .40 S&W
• Internal spring system rated for thousands of loading cycles
• Removable floorplate for cleaning and maintenance
• Witness holes for round count verification

Range testing demonstrates reliable feeding with various .40 S&W ammunition weights from 155 to 180 grains. The magazine functions consistently in competitive environments where rapid reloading is essential, while the steel construction handles drops and impacts better than polymer alternatives. Law enforcement and security professionals appreciate the extended capacity for duty applications where reload opportunities may be limited.

Technical Specs

• Capacity: 20 rounds
• Caliber: .40 Smith & Wesson
• Material: Blued carbon steel body
• Compatibility: Springfield XD series pistols in .40 S&W
• Finish: Traditional blued steel
• Spring: Music wire construction
• Follower: High-impact polymer
• Country of Origin: USA

The SPRA4 represents a practical capacity upgrade for Springfield XD owners who prioritize reliability and durability. ProMag backs this magazine with their standard warranty, reflecting confidence in the manufacturing quality and materials used throughout the design.