The Phalanx Defense H60067 is an ideal choice for the right-handed individual who is in need of a durable and secure Twin Mag outside-the-waistband (OWB) holster. This item serves as an excellent accessory whether you\'re using it at home, work, or during your time at the range. It assures all-day comfort alongside guaranteed security for your double stack magazines. Constructed with an injection molded nylon shell and equipped with rust-resistant black oxide fasteners, this Twin Mag is designed to last. It features an adjustable compression screw which provides a broad range of fit for double stack magazines. Plus, the Frame-Lock technology incorporated into the design ensures positive retention even during rugged use. This holster is compatible with double stack magazines for a variety of Glock handguns, including various 9mm models such as the G17, G19, G26, and the G34. It also accommodates .40 caliber models including the G22, G23, G27, and G35. Furthermore, it fits .45 GAP models G37, G38, and G39, as well as .357 SIG models like the G31, G32, and G33.