This is the part the holds the diffuser for the front barrel LEDs in place. This is another place where having a dual color setup would have saved me a ton of time.
After installing the first version of this part, I realized that it just wasn't stable enough to hold the diffuser in place. The second version has reinforcements between the diffusers and was much more stable. Still not as good as a dual color print would have been.
And wiring up the LEDs for the front barrel. If you look closely, you can see that the red wires to go ground and the black ones to 5V... oopsie