Introducing the Phalanx Defense H50053: Efficiently designed for satisfactory use at home, work, or during shooting practice. This right-hand Twin Mag Outside-the-Waistband (OWB) holster is perfect for double stack magazines, ensuring comfort throughout the day and offering unrivaled security.Made from injection-molded nylon shell with black oxide fasteners that are rust-resistant, the Twin Mag boasts durable construction. One of its key features is an adjustable compression screw, permitting a broad compatibility range for double stack magazines. Its Frame-Lock technology ensures positive retention even in the most rigorous conditions.The Twin Mag holster comfortably accommodates double stack magazines for a wide array of Glock handguns. These include 9mm models (G17, G19, G26, G34), .40 caliber models (G22, G23, G27, G35), .45 GAP models (G37, G38, G39), and .357 SIG models (G31, G32, G33). Your Glock handgun\'s perfect partner for easy carriage and quick access.