KCI USA Glock 22/23/24/27/35 Drum Pistol Magazine .40 S&W 50 Round Black 1 Pack Hardened Steel/Polymer 50RD. The load assist lever makes for fast and effortless loading. This magazine is not designed to be used with hollow point ammo. For use in Glock patterned pistols. Specifications for KCI USA Glock 22/23/24/27/35 .40 S&W 50 Round Drum Pistol Magazine: Manufacturer: KCI USA Gun Make: Glock Caliber: .40 S&W Magazine Capacity: 50 Round Color: Black Fabric/Material: Polymer Package Contents: KCI USA Glock 22/23/24/27/35 .40 S&W 50 Round Drum Pistol Magazine KCI USA KCI-MZ028-50RD: Glock 22/23/24/27/35 Drum Pistol Magazine .40 S&W 50 Round Black 1 Pack Hardened Steel/Polymer