Home / Accessory-Magazines / FN MAG FN 509 9MM 24RD BLK KIT FN MAG FN 509 9MM 24RD BLK KIT$7400 In stock FN MAG FN 509 9MM 24RD BLK KIT quantity Add to cart SKU: 20-100423 Category: Accessory-Magazines Product ID: 45681 Description Description Black BaseplateIncludes 3 Spacers Related products Springfield Armory MAGAZINE XD-S 40SW 6RD $3099 Springfield Armory MAG XDM ELITE CPT 45ACP 10RD $3699 Sale! Warne SIG P320 9MM MAG EXT +5 FDE $5449 Original price was: $5449.$5201Current price is: $5201. Sale! Warne M&P 9/40 MAG EXTENSION BLK $4999 Original price was: $4999.$4869Current price is: $4869.