Fit Guide: GSM02: All Glock 9mm, .357 SIG, and .40 Cal. Glock 36. GSM03: S&W M&P 9mm and .40 Cal, HK P30 9mm and .40 cal. Beretta 92 & 96 Series, SIG 226, 228, 229 series. And all Lionhart pistols. GSM04: All Glock .45 & 10mm Double Stack. GSM09: HK USP, and HK45 Series. Springfield XD and XDM. Para USA Double Stacked .45. STI Double Stacked, and FN 45. GSM10: All Single Stack 1911 and SIG P220 series. GSM11: S&W Shield GSM12: Glock 42, .380 GSM13: Glock 43, 9mm