Home / Accessory-Magazines / FN MAGAZINE FN 503 9MM 6RD BLACK View cart “Warne M&P 9/40 MAG EXTENSION FDE” has been added to your cart. FN MAGAZINE FN 503 9MM 6RD BLACK$4999 In stock FN MAGAZINE FN 503 9MM 6RD BLACK quantity Add to cart SKU: 20-100262 Category: Accessory-Magazines Product ID: 30108 Description Description Black Baseplate Related products SIG SAUER MAGAZINE 1911 COMPCT 45ACP 7RD $3499 Walther Arms MAGAZINE PPK/S 22LR 10RD $3900 Walther Arms MAGAZINE PPQ M1 9MM 15RD $4900 Walther Arms MAGAZINE PPQ M2 45ACP 12RD $4900