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Springfield XD4901: Upgrade your full-size XD handgun with the XD OSP (Optical Sight Pistol) Slide Assembly. The slide assemblies, featuring included cover plates, are cut to accept OSP optics mounting plates available for a wide range of popular optics.
Upgrade your full-size XD handgun with the new XD OSP (Optical Sight Pistol) Slide Assembly and Kit options. These 4 9mm kits and assemblies provide original XD owners OSP capabilities as well as the ability to convert certain XD models to a full-size 4 9mm configuration. The slide assemblies featuring included cover plates are cut to accept OSP optics mounting plates available for a wide range of popular optics.