For use with SIG SAUER P226 firearms chambered in .40 S&W, .357 SIG., .22 LR or 9mm calibers, the SIG SAUER P226 .40 S&W/.357 SIG. 15-Round Replacement Magazine features steel construction and a detachable design. Blued finish. SIG SAUER P226 .40 S&W/ .357 SIG. 15-Round Replacement Magazine - Shooting Supplies And Accessories at Academy Sports