Designed specifically for the Black Onyx Gen 3 Trigger Sticks. The Trigger Stick Gen 3 Accessory Mount is one of the many accessories that we have designed to help you get the most out our your Trigger Stick Gen 3. Designed to work with all Trigger Stick Gen 3 Models. Standard -20 Threaded post fits most optics/cameras. *Does not fit original or Gen 2 Trigger Sticks.