USED Glock G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine Glock 17/17L/19/19X/26/34 Coyote Tan 1 Pack 19. Factory Glock magazines have a hardened steel insert encased in high tech polymer. This polymer coating protects the magazine and prevents deformation even when dropped from a great height. Note: Glock magazines can be very difficult to load when new. Often the last round will not fit until the magazine has undergone a break-in period. It is recommended that the magazine be loaded with all but the last round and left for a few days to compress the spring. Cycling the magazine from full to empty multiple times can assist in the break-in period. Specifications for Glock G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine: Manufacturer: Glock Gun Make: Glock Gun Model: Glock 17L Gen 5 Glock 34 Gen 5 Glock 19 Gen 5 Glock 26 Gen 5 Glock 17 Gen 5 Glock 19X Gen 5 Caliber: 9mm Luger Magazine Capacity: 19 Round Color: Coyote Tan Fabric/Material: Polymer Package Contents: Glock G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine What firearm models does the manufacturer say Glock G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine is compatible with? The manufacturer says that Glock G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine is compatible with Glock 19X Gen 5 Glock 17 Gen 5 Glock 26 Gen 5 Glock 19 Gen 5 Glock 34 Gen 5 Glock 17L Gen 5Glock 47488: G17 Gen5 9mm Luger 19 Round Factory Pistol Magazine Glock 17/17L/19/19X/26/34 Coyote Tan 1 Pack 19