This is a factory .40 S&W/.357 Sig 10-round magazine for Sig P320/P250 pistols.
Adopted by the US military, the Sig P320 (based on the Sig P250 frame) is totally modular, durable enough to withstand even the toughest conditions—and its factory magazines keep up flawlessly.
These magazines feature a 10-round capacity for Sig P320/P250 pistols chambered in .40 S&W and .357 Sig. Built from carbon steel and high-end polymer, then finished with a special anti-friction coating, these factory magazines are crafted to Sig Sauer's unrivaled standard of excellence and ideal for target shooting/tactical drills.
These magazines are designed for full-size P320/P250 pistols but will also function with smaller models.