This is just a simple insert to cover the holes in the AMS Riser V2 by maCyo42 intended for tool attachments. I didn't intend to use the tool attachment holes and preferred to have them covered for a more complete look.

I printed them on the side with support material to more closely match the layer lines of my AMS Riser however, it can be printed flat if you desire. There's a small notch at the bottom of the pieces so a flathead screwdriver can be used for easier removal of the covers if desired.