Step up to the NXt generation of interchangeable thumb technology. The all-new Turbo Switch Grip NX™ features oversized Dual-Winged Tabs that increase surface contact between the inner and outer assemblies, delivering enhanced stability and an unmistakably locked-in feel. Turbo’s innovative Dual Snap™ Locking System creates a stronger, more secure fit you can trust shot after shot. And because the Switch Grip NX uses the same drilling instructions and assembly diameters as the Original Switch Grip®, you can transition to the latest technology without starting over. More stability. More confidence. One seriously secure connection. Switch Grip® Interchangeable Inserts consist of ONLY TWO components:an Outer Sleeve that is permanently glued into your thumb holean Inner Sleeve, which can be removed and used amongst all of your equipment. This is the Inner Sleeve Component with a pre-installed thumb slug.