ProMag FNHA13 20-Round 9mm Magazine for FN 509 - Blued Steel

The ProMag FNHA13 extends the capacity of FN 509 pistols to 20 rounds of 9mm ammunition, providing additional firepower for competitive shooting, training, and tactical applications. This extended magazine maintains reliable feeding while offering a substantial capacity increase over standard factory magazines.

What Makes This Different

Constructed from heat-treated blued steel, the FNHA13 delivers enhanced durability compared to polymer alternatives. The magazine body features precision-formed construction that ensures consistent geometry for reliable chambering. ProMag's spring system utilizes chrome silicon wire rated for over 10,000 compression cycles, maintaining consistent tension throughout the magazine's service life.

Key Features

• 20-round capacity for 9mm Luger ammunition
• Heat-treated blued steel construction for corrosion resistance
• Chrome silicon wire spring system for consistent feeding
• Precision-formed magazine body maintains dimensional accuracy
• Extended baseplate with finger grooves for positive grip
• Compatible with all FN 509 pistol variants
• Drop-free design ensures reliable magazine changes

The FNHA13 performs consistently across various ammunition weights from 115 to 147 grains, making it suitable for both practice and defensive loads. Competition shooters benefit from the reduced reload frequency during extended strings of fire. The extended length provides improved grip purchase during tactical reloads, while the steel construction withstands repeated drops on concrete surfaces without damage.

Technical Specs

• Capacity: 20 rounds of 9mm Luger
• Material: Heat-treated blued steel body
• Overall Length: Approximately 6.5 inches
• Weight: 4.2 ounces (empty)
• Spring: Chrome silicon wire construction
• Follower: High-impact polymer with anti-tilt design
• Compatibility: FN 509, 509 Compact, 509 Tactical models
• Finish: Traditional blued steel

The ProMag FNHA13 represents a practical capacity upgrade for FN 509 owners who require additional ammunition without compromising reliability. Professional training facilities and competitive shooters choose this magazine for its consistent performance and robust construction that withstands high-volume use.