Home / Accessory-Magazines / Warne SIG P320 9MM MAG EXT +5 FDE View cart “Warne M&P 9/40 MAG EXTENSION FDE” 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 Walther Arms MAGAZINE PPQ M2 45ACP 10RD $4900 SIG SAUER MAG SP2022 357SIG/40S&W 10RD $4999 SIG SAUER MAG SP2022 357SIG/40S&W 12RD $4999 Sale! Warne M&P 9/40 MAG EXTENSION BLK $4999 Original price was: $4999.$4869Current price is: $4869.