Promag Fn Fv Svn 5.7x28mm 21rd Bl St

The ProMag FN FV Seven 5.7x28mm 21-round magazine delivers reliable ammunition storage for shooters and professionals who depend on FN Five-seveN platform firearms. Built to meet the demanding standards of tactical operators, law enforcement, and civilian marksmen, this magazine bridges the gap between premium performance and field-proven durability. The 21-round capacity provides substantial firepower for training, competition, and defensive applications where extended magazine capacity matters.

ProMag magazines are manufactured in the USA and backed by a lifetime guarantee against manufacturer defects, reflecting the company's commitment to long-term reliability. The magazine springs are precision-wound using heat-treated chrome silicon wire—a material choice that resists fatigue and maintains consistent feeding pressure across thousands of rounds. Each stage of assembly undergoes rigorous quality control, with multiple verification checkpoints ensuring that every magazine meets the same exacting standards. The robust construction withstands the wear inherent to tactical duty, training cycles, and storage in field conditions.

Operators running FN Five-seveN platforms—whether for duty carry, recreational shooting, or competitive events—will appreciate the magazine's straightforward compatibility and proven track record. The 21-round capacity fills the practical middle ground between standard and extended options, offering increased firepower without excessive bulk. This magazine pairs seamlessly with OEM equipment and aftermarket accessories, making it an essential backup or upgrade for anyone serious about their 5.7x28mm platform. At 0.38 lbs per magazine, the weight penalty is minimal even when carrying multiple loaded units.