Elevate your shooting experience with the ProMag FN 509 Magazine designed to enhance your firearm's performance. Crafted from durable steel this magazine ensures long-lasting reliability and strength. With a generous capacity of 20 rounds it allows for extended practice sessions or competitive shooting without frequent reloads. Specifically designed for 9mm caliber this magazine offers seamless compatibility and smooth feeding making it an essential addition to your FN 509 setup.