This rail adapts to a thermal monocular with a curved base to make it a quick release system and compatible with SmartRest Mounts and swivels. Countersunk 1/4 inch screw is included.
Note: Flat base also available. (SRTWR)
Helpful tip - If the thermal is tapered and does not line up with the direction the lens is aiming, use a riser strip of rubber to pack it out.