Home / Accessory-Magazines / Warne M&P 9/40 MAG EXTENSION BLK View cart “FN MAGAZINE FN 509C 9MM 10RD BLK” has been added to your cart. Sale! Warne M&P 9/40 MAG EXTENSION BLK$4999 Original price was: $4999.$4869Current price is: $4869. In stock Warne M&P 9/40 MAG EXTENSION BLK quantity Add to cart SKU: MESW-5/4BLK Category: Accessory-Magazines Product ID: 26021 Description Description +5 9MM | +4 .40 Mag Extension6061 T6 Aluminum BilletType 2 Anodized Finish Related products Sale! Warne M&P 9/40 MAG EXTENSION FDE $5499 Original price was: $5499.$5237Current price is: $5237. Walther Arms MAGAZINE PPK/S 22LR 10RD $3900 Sale! Warne SIG P320 9MM MAG EXT +5 FDE $5449 Original price was: $5449.$5201Current price is: $5201. Warne CZ 75 9MM MAG EXTENTION +5 GRY $4449