FN Five-seveN 20rd Magazine 5.7x28mm Black Polymer

The FN Five-seveN 20-round magazine delivers reliable feeding for the acclaimed FN Five-seveN pistol chambered in 5.7x28mm. This factory magazine ensures consistent performance with the unique bottleneck cartridge that defines the Five-seveN platform.

What Makes This Different

Unlike aftermarket alternatives, this factory FN magazine features engineered polymer construction specifically designed for the 5.7x28mm cartridge's tapered case geometry. The follower design and spring tension accommodate the cartridge's unique profile, preventing feeding issues common with generic magazines. Factory specifications ensure proper lockup and ejection timing that aftermarket options often struggle to match.

Key Features

• Factory FN construction for guaranteed compatibility with Five-seveN pistols
• 20-round capacity maximizes the 5.7x28mm cartridge advantages
• Black polymer body resists impact and environmental exposure
• Engineered follower accommodates 5.7x28mm bottleneck cartridge geometry
• Steel spring maintains consistent tension through full capacity
• Witness holes allow quick round count verification
• Removable floorplate enables field maintenance

The 5.7x28mm cartridge requires precise magazine geometry to function reliably, making factory magazines essential for consistent performance. Law enforcement agencies and competitive shooters rely on these magazines for their flat trajectory and armor-penetrating capabilities. The polymer construction withstands temperature extremes while maintaining dimensional stability that affects feeding reliability.

Technical Specs

• Capacity: 20 rounds
• Cartridge: 5.7x28mm
• Construction: Black polymer body with steel internals
• Compatibility: FN Five-seveN pistol series
• Weight: Approximately 3.2 oz empty
• Length: 6.5 inches overall
• Country of Origin: Belgium
• Manufacturer Part Number: 3866100030

Factory magazines eliminate the feeding inconsistencies that plague many Five-seveN owners using aftermarket alternatives. Professional users understand that magazine reliability directly impacts system performance, making genuine FN magazines the logical choice for serious applications.