Home / Accessory-Magazines / Warne SIG P320 9MM MAG EXT +5 FDE View cart “FN MAGAZINE FN 509C 9MM 10RD BLK” has been added to your cart. Sale! Warne SIG P320 9MM MAG EXT +5 FDE$5449 Original price was: $5449.$5201Current price is: $5201. In stock Warne SIG P320 9MM MAG EXT +5 FDE quantity Add to cart SKU: MESIG-5/4DE Category: Accessory-Magazines Product ID: 26024 Description Description +5 9MM Magazine Extension6061 T6 Aluminum BilletType 2 Anodized Finish Related products Warne CZ 75 9MM MAG EXTENTION +5 GRY $4449 Springfield Armory MAGAZINE XD-S 40SW 6RD $3099 SIG SAUER MAG SP2022 357SIG/40S&W 10RD $4999