Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly w/Crimson Trace 4in Black. These 4in 9mm kits and assemblies provide original XD owners OSP capabilities as well as the ability to convert certain XD models to a full-size 4in 9mm configuration. The slide assemblies featuring included cover plate are cut to accept OSP optics mounting plates available for a wide range of popular optics. Specifications for Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly: Manufacturer: Springfield Armory Gun Make: Springfield Armory Gun Model: Springfield Armory XD 4in Caliber: 9mm Luger Color: Black Fabric/Material: Forged Steel Condition: New Features of Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly Slide assemblies fit 4in and 5in original XD full-size handguns. Not compatible with XD Mod.2 XD-M XD-M Elite XD-S XD-S Mod.2 or XD-E handguns. Package Contents: Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly All kits ship with (1) XD5072 Plate What firearm models does the manufacturer say Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly is compatible with? The manufacturer suggests that Springfield Armory XD 9mm Optical Sight Pistol Plate Slide Assembly is compatible with Springfield Armory XD 4inSpringfield Armory XD4903: XD 9mm Optical Sight Pistol Plate Slide Assembly w/Crimson Trace 4in Black