King Holster Inside the Waistband IWB Concealed Gun Holster fits RUGER Security 9 | American | SR 1911 | 9E SR9c and SR9 Gun holster for concealed carry fits compact and full size semi-auto pistols. Inside the waistband carry method. Material is high quality synthetic suede that is very smooth & will not irritate the skin like other holsters. King Holsters are by far the best bet for maximum concealed, comfortable carry.