Loads all* 9mm Luger, .357 Sig, 10mm, .40, and .45ACP cal. single and double stack magazines., including 1911 mags, of all manufacturer, and also loads most .380ACP double-stack mags. * Easy loading; the rounds just drop in with no fingers pushing or pressing them. * Up to one round per sec. loading rate. 1/3 the time loading mags compared with thumb loading. * Fits in hand and pocket, weighs only 66 grams (2.3 Ounce). * Highly durable.