The Blade-Tech Mod-Lok™ Upgrade Kit is designed for our Total Eclipse® 1.0 owners who still enjoy running their current holster but want the innovative and versatile benefits the Mod-Lok™ System offers. Our Mod-Lok™ Holster Mods allow you to quickly change carry styles and placements in just a matter of seconds. This is a great way to bring an upgrade to your trusted holster and give yourself a selection of new carry styles and variations.