RAE Industries Sig Sauer P250 P320 Compact, Sub, and Full Size 9mm, 40S&W, 357SIG Magazine Loader (Black) Magazine loading tool. MAGAZINE NOT INCLUDED. Simple loading tool custom designed profile to fit pistol mags by over 35 gun manufactures. Save Your Thumbs. Easily and quickly load mags with stiff springs. Load Faster, Shoot More. Focus on shooting rather than loading mags at the range. No complex moving parts to malfunction, to pinch the hand, damage magazine follower, or plating on bullets. One Design. All Mags. Single or double stack 22TCM, .357, .380, 10mm, and most .40, .45 cal.