FN FNS-9 Magazine 10-Round 9mm Luger Black Steel OEM

The FN 663304 FNS magazine delivers reliable feeding and consistent performance for FNS-9 pistols. This factory original equipment magazine maintains the tight tolerances and quality standards that FN firearms are known for. Built with heat-treated steel construction and a corrosion-resistant black finish, this magazine stands up to demanding use while preserving smooth operation.

What Makes This Different

Factory FN magazines feature precision-engineered feed lips and follower geometry specifically matched to FNS pistol specifications. The steel body construction provides superior durability compared to polymer alternatives, while the witness holes allow quick visual ammunition counts. Internal components undergo rigorous testing to ensure consistent feeding across various 9mm ammunition weights and profiles.

Key Features

• 10-round capacity optimized for restricted states and competition use
• Heat-treated steel body with corrosion-resistant black oxide finish
• Precision-molded polymer follower for smooth cartridge feeding
• Witness holes for quick ammunition count verification
• Factory OEM construction ensures perfect fit and function
• Compatible with all FNS-9 and FNS-9C pistol models
• Drop-free design for rapid magazine changes

This magazine performs consistently across temperature extremes and extended shooting sessions. The steel construction maintains dimensional stability under stress, while the factory spring tension provides reliable feeding with both ball and hollow point ammunition. Competition shooters appreciate the reduced capacity for match compliance, while the robust construction handles the demands of training and duty use.

Technical Specs

• Capacity: 10 rounds of 9mm Luger ammunition
• Construction: Heat-treated steel body with polymer components
• Finish: Black oxide coating for corrosion resistance
• Compatibility: FNS-9 and FNS-9C pistols
• Weight: Approximately 3.2 ounces empty
• Length: 4.5 inches overall
• Manufacturer: FN America
• Part Number: 663304

FN's factory magazines represent the gold standard for reliability and longevity in the FNS platform. This 10-round configuration meets capacity restrictions while maintaining the feeding reliability that professionals demand. Stock up on genuine FN magazines to ensure your FNS pistol performs at its peak potential.