The Springfield Armory XD Double Magazine Pouch is capable of holding Springfield XD double stack magazines in 9mm, .40 S&W, .357 SIG and .45 GAP calibers. The magazine holster is made with a slim profile, while separating the magazines at an optimal angle so that either is easy to remove. A tensioning screw allows for a snug fit, always conforming perfectly to Springfield brand magazines. Constructed of durable Kydex thermoplastic, this magazine pouch is waterproof and abrasion-resistant. It will fit most 2" belts..