IWB Holster for Sig Sauer P320 Full Size 9MM/.40SW This comfortable and discreet holster is made out of durable Kydex and designed specifically for the Sig Sauer P320 Full Size 9MM/.40SW. By using Kydex we are able to keep as thin of a profile as possible ensuring concealment under all kinds of clothing. Our Sig Sauer P320 Full Size 9MM/.40SW IWB Holsters Feature: Adjustable Retention, allows you to set the tension to your personal comfort. Adjustable Ride and Cant, allows for maximum flexibility in carry options. Adjustable Clip, up to 8 different positions. Protective Sweat Guard, minimizing the contact between your gun and your body. Secure Belt Clip, ensuring clean draws. All of our holsters are hand-molded and assembled at our factory in Las Vegas, NV. This holster does not fit .45 ACP size gun, only 9mm and .40 S&W. This holster does not fit for models containing a manual safety.