The 1791 Ultra Custom Light Bearing holster with Memory-Lok technology allows for a customized fit with Kydex like retention with the comfort of leather. The Ultra Custom comes with an innovative design that allows you to use rail-mounted accessories like larger lights and lasers. Once you receive it follow the instructions and mold the Memory-Lok Leather to a full custom fit for your firearm. You can’t get any more custom than that. Compatible with 1911 3″; Bersa Thunder 380; Glock 42 43 43X; Kahr CW45 K9; Kimber EVO Micro 380 Micro 9 Ultra Carry Ultra Raptor ii; Ruger LC9 SR22 SR1911; Sig Sauer P238 P365 P365XL Ultra Nitron; Springfield Hellcat; Taurus GX4; Walther PPK and similar frames with most rail mounted lights.