Home / Accessory-Magazines / FN MAGAZINE FN 509 9MM 10RD FDE View cart “Warne M&P 9/40 MAG EXTENSION FDE” has been added to your cart. FN MAGAZINE FN 509 9MM 10RD FDE$5699 In stock FN MAGAZINE FN 509 9MM 10RD FDE quantity Add to cart SKU: 20-100346-2 Category: Accessory-Magazines Product ID: 26003 Description Description FDE Baseplate Related products Walther Arms MAGAZINE PPQ M1 9MM 15RD $4900 SIG SAUER MAG 320/250 SUBCMPCT 9MM 12RD $4999 Taurus MAG 1911 OFFICER 45ACP 6RD $3499 SIG SAUER MAG SP2022 357SIG/40S&W 12RD $4999