These mule conversions are available in triple and quad format. I have tested their fitment in my Lumintop FW3A (triple) and Emisar d4v2. They work great!
My preference is GITD green but I have many color options available, shoot me an email with color preference to: xyz3dprintingnm@gmail.com
For those that do not want a mule, I also have glow in the dark rings that fit underneath the stock carclo optic. See my other listings.
Shot out to @Zumlin_826344 on printables. His original design can be seen here:
