ETS C.A.M Loader loads pistol mags in seconds. It works idealy with 9mm and .40 caliber pistol mags, double or single stack, and also picks up rounds from an ammo tray. The mag loader is constructed of an extremely durable polymer and easily fits in your range bag. Please Note: This magazine loader will not work with STI 2011, Bersa Thunder .380, Taurus PT709, Walther CCP, Sig P938, Makarov 9x18, Springfield Armory Hellcat, Steyr C9-A1, or any other magazine that is larger than a standard double stack 9mm magazine.