Centennial Defense Systems Extended Mag Release for Glock 43X/48 Stippled Blue. It is designed to fit in most holsters and will fit the Glock 43 43X and 48. Specifications for Centennial Defense Systems Extended Mag Release for Glock 42/43/43X/48: Manufacturer: Centennial Defense Systems Gun Make: Glock Fabric/Material: 6061 Aluminum Package Contents: Centennial Defense Systems Extended Mag Release for Glock 42/43/43X/48 What firearm models does the manufacturer say Centennial Defense Systems Extended Mag Release for Glock 42/43/43X/48 is compatible with? The manufacturer suggests that Centennial Defense Systems Extended Mag Release for Glock 42/43/43X/48 is compatible with Glock 42 Glock 43 Glock 43X Glock 48Centennial Defense Systems 20515: Extended Mag Release for Glock 43X/48 Stippled Blue