Home / Accessory-Magazines / Warne M&P 9/40 MAG EXTENSION BLK View cart “SIG SAUER MAG SP2022 357SIG/40S&W 10RD” 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 Ruger MOON CLIPS GP100 10MM 3-PACK $1695 SIG SAUER MAG 320/250 SUBCMPCT 9MM 12RD $4999 Springfield Armory MAGAZINE XDE 9MM 8RD FLUSH FIT $3699 Warne CZ 75 9MM MAG EXTENTION +5 GRY $4449