VISM Vice Block for XD Slides Blue. Specifications for VISM Vice Block for XD Slides: Manufacturer: VISM Gun Type: Pistol Color: Blue Features of VISM Vice Block for XD Slides The slide vice block makes it easier to work on and service the slide. A great way to secure the slide onto the vice jaws to remove and replace the front and rear sights on the slide. Insert the slide vice block onto the frame rail grooves of the slide and mount onto the jaws of a vice. Gradually tighten the vice jaws onto the slide vice block until the slide is secured. Do not overtighten vice jaws. Package Contents: VISM Vice Block for XD Slides VISM VTVBXD: Vice Block for XD Slides Blue