Sig Sauer and XDm spring and follower kits give USPSA Production and Carry Optics shooters a quick way to refresh magazines. The page lists Grams kits for Sig Sauer P320, P250, and P226, and for the Springfield XDm, plus Rune Tactical RT Series V2 and the MBX Extreme Ultra Max set for Sig 320. Replace every magazine in the rotation together and confirm your model and magazine before ordering. Fast same-day shipping on most orders at Shooters Connection.