Home / Accessory-Magazines / Warne M&P 9/40 MAG EXTENSION BLK 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 SIG SAUER MAGAZINE 1911 COMPCT 45ACP 7RD $3499 Sale! Warne M&P 9/40 MAG EXTENSION FDE $5499 Original price was: $5499.$5237Current price is: $5237. Smith and Wesson MAGAZINE M&P40C 40S&W 10RD $4200 Walther Arms MAGAZINE PPQ M2 45ACP 12RD $4900