Leofoto’s FDM-02 is a universal accessory rail kit with two mounting systems. This product is designed for rifle sport users to mount optics and telemetry equipment, but it can be used for a wide variety of industries and applications.
This kit consists of 3 parts, keep reading more information on each.
 
Part 1 – 200mm Double Arca Profile Rail
This rail/plate features a double Arca profile, which allows the user to position multiple mounting options at any position. The bottom profile allows the rail to be moved to any position in an Arca clamp to suit a variety of installed equipment. A large top-mounted spirit level allows quick and easy levelling of the rail for level panning and accurate measurements. 
 
Part 2 – LH22 Ball Head
This ball head allows one of the installed items to be manoeuvred independently of the rail. This is ideal for training a spotting scope on a target. Note that this is not a standard LH-22 – it is permanently mounted to an Arca clamp, which allows it to be attached to the rail.
A small mounting plate is included with the head.
 
Part 3 – DDC-38 Clamp Package
This is a dual Arca clamp system that allows one of the installed items to be mounted parallel or perpendicular to the rail.
 
Specifications
Length: 200mm
Weight: 515g
The kit is composed of: BPL-200+LH-22+DDC-38+NP-60S