UVF v2 Sled (Alexa Mini) is just the knuckle portion of popular UVF Mount v2 but without the 15mm Tube Clamp portion. Two points of adjustment: NATO thumbscrew (identified by red component) for positioning on NATO rail and tension thumbscrew to adjust tilt of EVF. Tool-less design allows quick installation and removal of UVF v2 Sled.

UVF v2 Sled can attach to any NATO-style rail..