Home / Accessory-Magazines / SIG SAUER MAG 320/250 357SIG/40S&W 18RD View cart “Warne M&P 9/40 MAG EXTENSION FDE” has been added to your cart. SIG SAUER MAG 320/250 357SIG/40S&W 18RD$4999 In stock SIG SAUER MAG 320/250 357SIG/40S&W 18RD quantity Add to cart SKU: MAG-MOD-F-43-18 Category: Accessory-Magazines Product ID: 29637 Description Description Fits Sig P250/320 Full SizeFits .357Sig/.40S&W Related products SIG SAUER MAG SP2022 357SIG/40S&W 10RD $4999 Sale! Warne M&P 9/40 MAG EXTENSION FDE $5499 Original price was: $5499.$5237Current price is: $5237. Springfield Armory MAGAZINE 911 380ACP 7RD SS $2699 Sale! Warne GLOCK 17/22 MAG EXT +5/+4 FDE $5449 Original price was: $5449.$5201Current price is: $5201.