Home / Accessory-Magazines / ProMag PROMAG S&W M&P9 9MM MAG 17RD View cart “Warne M&P 9/40 MAG EXTENSION FDE” has been added to your cart. ProMag PROMAG S&W M&P9 9MM MAG 17RD$2899 In stock ProMag PROMAG S&W M&P9 9MM MAG 17RD quantity Add to cart SKU: SMI-A12 Category: Accessory-Magazines Product ID: 54309 Description Description Blued Steel Related products SIG SAUER MAGAZINE 1911 COMPCT 45ACP 7RD $3499 SIG SAUER MAG SP2022 357SIG/40S&W 12RD $4999 Sale! Warne M&P 9/40 MAG EXTENSION FDE $5499 $5237 SIG SAUER MAG SP2022 357SIG/40S&W 10RD $4999