The SmallRig 1885 NATO Clamp 1/4″ to 3/8″ attaches to any NATO rail accessories. It features a red locking lever. This NATO clamp comes with many 1/4”-20 mounting points on the top, which allows you to mount small camera/monitor or wireless receiver. Besides, a cold shoe mount can be attached, enabling a way to mount additional accessories, such as flashlight, Microphone, etc.