Home / Accessory-Magazines / Warne M&P 9/40 MAG EXTENSION BLK View cart “Warne SIG P320 9MM MAG EXT +5 FDE” 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 GLOCK 17/22 MAG EXT +5/+4 FDE $5449 Original price was: $5449.$5201Current price is: $5201. Beretta MAGAZINE MODEL 96 40S&W 11RD $3500 Walther Arms MAGAZINE PPK/S 22LR 10RD $3900 Ruger 77/17 MAGAZINE 17HORNET 6RD $3795