The CBE Picatinny Mount Adapter is a simple-to-use mounting accessory that accommodates any front Picatinny style sight mounts. Made from lightweight, machined aluminum, the Picatinny Mount Adapter provides 1st axis adjustment and is compatible with many of our CBE Sights. FeaturesSimple Accessory-Mounting Platform for Front Picatinny Style Sight MountsProvides 1st Axis AdjustmentAmbidextrous - Can Be Used for BOTH Right & Left-HandedLightweight, Machined Aluminum Construction Compatible WithTREK PROTREKEngage Hybrid (Will Lose 3rd Axis Adjustment)Engage Micro (Will Lose 3rd Axis Adjustment)CX-5Elevate