Home / Accessory-Magazines / Warne M&P 9/40 MAG EXTENSION BLK View cart “Warne GLOCK 17/22 MAG EXT +5/+4 FDE” has been added to your cart. Sale! Warne M&P 9/40 MAG EXTENSION BLK$4999 $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 Smith and Wesson MAGAZINE M&P40C 40S&W 10RD $4200 Sale! Ruger MAGAZINE SR40/SR40C 15RD $4895 $4610 Warne CZ 75 9MM MAG EXTENTION +5 GRY $4449