AIRSOFT ARTISAN SCAR M-Lok Adapter DX Kit for WE SCAR

I picked up this kit for my WE SCAR-L CQC as the PTS rail kit seems to be discontinued and impossible to get. Parts appear to be well made. Unfortunately there are no instructions and there were some issues installing it. There is a part behind the gas block that holds the barrel in place and has holes for the side panels. This needs to be removed in order to install the front extension part. However the front extension does not exactly replicate this part as it does not make contact with the barrel. It also needed to be moved slightly forward to match the hole on the barrel but then the holes on the side do not line up with the side panels. The side panels can be installed without those two screws, it's just not as secure. The bottom part comes with screws but they are too short and I had to use the original screws. However because the bottom part is more slim the rear screw is isn't flush when fully screwed in. Inserting a rubber washer seems to have fixed this issue but it is slightly raised. In summary everything is attached and seem to be tight. I don't know what version of the WE SCAR they made this for because there are numerous inconsistencies. The title mentions this is the DX version but I have no idea what this is referring to.