The RunCam2 is a great leap forward in the action camera market. Offering unique features like 60 frame per second recording at 1080p HD resolution, a removable battery and a wi-fi feature. This mount is designed to work with the camera after it has been modified to accept a pinhole lens (11mms in diameter). The mount ensures the lens is always perfectly centered and aligned with the barrel. Additionally since the RunCam2 has no way of easily locking the lens in place the mount prevents the lens from rotating by simply sliding the camera into the mount. The camera is held by the mount on the sides and has no bottom plate this allows the camera to sit directly on the rail making it as low profile as possible and enhancing airflow to keep the camera cooler during recording. Mount attaches directly to any picatinny or weaver rail and locks in place with a nut/bolt combo (#8 1-1/4" supplied by the user).