FN 503 9mm Pistol 8-Round Magazine - Stainless Steel/Black

The FN 503 represents a breakthrough in subcompact pistol design, delivering full-size performance in a package small enough for everyday carry. This 8-round 9mm Luger magazine features a stainless steel construction with black polymer baseplate for optimal corrosion resistance and reliable feeding.

What Makes This Different

Unlike standard polymer magazines, this factory FN magazine combines stainless steel durability with precision engineering specific to the FN 503 platform. The hybrid construction provides superior strength compared to all-polymer alternatives while maintaining the lightweight characteristics essential for concealed carry. Factory specifications ensure perfect fit and function with the FN 503's unique feeding geometry.

Key Features

• 8-round capacity optimized for 9mm Luger cartridges
• Stainless steel body resists corrosion and maintains spring tension
• Black polymer baseplate with textured grip surface
• Factory-engineered feed lips prevent misfeeds and double-feeds
• Heat-treated spring maintains consistent pressure through thousands of cycles
• Witness holes for quick round count verification
• Drop-free design enables rapid reloads under stress

Field testing demonstrates consistent feeding across various 9mm ammunition weights from 115 to 147 grains. The magazine functions reliably in temperatures from -20°F to 140°F, making it suitable for duty carry, competitive shooting, and personal protection scenarios. The stainless construction resists salt corrosion in coastal environments while the polymer baseplate absorbs impact during tactical reloads.

Technical Specs

• Caliber: 9mm Luger
• Capacity: 8 rounds
• Construction: Stainless steel body, polymer baseplate
• Compatibility: FN 503 pistols only
• Overall Length: Approximately 4.2 inches
• Weight: 3.1 ounces empty
• Finish: Natural stainless with black polymer components
• Country of Origin: Belgium

This factory magazine ensures the reliability that FN's military and law enforcement customers demand. The precision manufacturing tolerances and quality materials justify the investment for serious shooters who refuse to compromise on performance.