For anyone interested, I think the Kaidomain quad mcpcb and quad optic would be a direct swap in to the FW3A. The Kaidomain quad optic is smaller diameter than the Carclo quad but larger than Carclo triple. However it has slightly smaller OD than the non-Carclo stock triple that Lumintop was using in the previous batch of FW3A.
So you are saying this might fit cause the MCPCB is thicker and you would get rid of the front glass?
Yea at the expense of no front glass similar to the non-carclo stock optic.
Do you think this is the same optic Wuben and FireFlies used in their quads? If so I would liken it to something between narrow and medium beam width and lightly frosted in “Carclo” terms. It’s pretty good if you are not looking for overly throwy or overly floody.
Edit (stolen from Wuben thread, thanks Chatika vas Paus):
Looks the same to me… (Wuben on top)
I haven’t tried the KD quad optic but it looks clear and throwy to me like the 10507. The Wuben and Fireflies optics are larger diameter.
The very middle of each optic is frosted. Same deal in Sofirn C01S
Yeah the Wuben/Fireflies quad optic is much wider than a Carclo triple.
The KD triple optics I have are very throwy, and have almost a clear, “empty” looking spot right in the center of each individual optic. You can clearly see the emitter with no distortion/magnification I can see through the center. They don’t seem as efficient Carclo ones though, but that could be the light going into the wider spill vs Carclo narrow spot maybe? Hard to tell by the naked eye.
I didn’t know that Wuben and Fireflies used quads different from Carclo.
Same with Manker and Mateminco. Are those all the same optics?
Might want to check the diameter of the FW3A’s sink/center section and depth….also…. 
The Wuben TO50R was supposed to use a carclo quad but they used this one instead, same TIR than the one of the FireFlies PL47.
Mateminco is using a different model.
Bah, someone set up the group buy for E07 15 degree lenses plz 
Thing is…….Will it fit inside the FW3A’s sink?
just a few Ti bezel mods, we are waiting…
Hahaaa! Ti Tubing…Ti Bezels and more…. :heart_eyes:
I’m saving and waiting on a good rotary table/chuck…
Will you make a 18350 tube?
If so, I’m in :partying_face: 
Me too!!! 
And me
I was literally just thinking this morning how nice being able to have an 18350 FW3A would be. Now I see I’m not alone.
I put in mine LH351D 4000K 90+CRI on Noctigon instead of xpl hi 7A.
Much better colour rendering. I will measure it later and add a pictures.
Mike
Glad that worked out well for you