Fn 509 Midsize 9mm Stainless Steel Magazine Black Stainless Finish

The FN 20100348 509 15rd 9mm Luger magazine from FN delivers reliable feeding and durable construction for shooters using the FN 509 Midsize, offering a detachable, 15-round capacity in a black finish over stainless steel for corrosion resistance and everyday carry toughness. Designed specifically to fit the 509 Midsize, this handgun magazine combines a rugged stainless-steel body with a smooth polymer follower and a consistent spring to ensure positive, snag-free reloads and dependable chambering under range, training, or defensive use. The low-profile base and factory fit maintain the pistol's ergonomics and concealability while providing extra rounds for extended sessions on the range or when a higher capacity is needed for competition or duty applications. As part of the Handgun Magazines category, this FN magazine is built to FN's tolerances for drop-in compatibility with 509-series inserts and magazines, making it an ideal spare or replacement for owners seeking solid materials, reliable feeding, and a finish that resists wear from frequent use.