XTS Slide Part Kit Glock G19 Black. Upgrade or Replacement: Whether youre building a custom Glock 19 slide or replacing worn-out components the G19-SPK is an indispensable kit. Maintain Authenticity: Utilizing genuine Glock parts guarantees that your Glock 19 retains its original authenticity and functionality. Package Contents: XTS Glock G19 Slide Part Kits What firearm models does the manufacturer say XTS Glock G19 Slide Part Kits is compatible with? The manufacturer says that XTS Glock G19 Slide Part Kits is compatible with Glock 19XTS G19-SPK: Slide Part Kit Glock G19 Black