Here is the ShtokCustomWorx Low Profile ECO NPXL V3/V4 7 Pin PCB Chassis Lens Cover.

This is the lens diffusion cover for specific chassis designs which require a much lower profile lens cover where the chassis itself holds the PCB. 

Machined from acrylic. It is not compatible with any third-party PCB holder. It is for the 7 pin ECO NPXL V3 or V4 PCBs.

Please be sure that before ordering, you are fully aware of the shipping policies outlined here: