Stealth Operator Holster Twin Mag Double Magazine Pouch, Fits Most Double Stack Magazines, Black Nylon H50053 The Stealth Operator Twin Mag is a perfect addition to the holster family. Whether at home" on the job" or hitting the range" this outside-the-waistband (OWB) holster provides all-day comfort" as well as security for your double stack magazines. The Twin Mag is designed using the same high-durability materials as the rest of the series" including an injection molded nylon shell and rust-resistant black oxide fasteners. An adjustable compression screw grants an extremely wide range of fit for double stack magazines" while the Frame-Lock technology grants positive retention during even the most rugged use.