Got this off eBay. Trying to find out info on it, it's huge and would be perfect for my project! It's bullet shaped, 6" wide and about 7 1/2" long.

 

The curve in the mount looks like the Arlen Ness headlights, not sure about that one though

 

it is a dna or ultima light housing ( same thing ) , I have same one

 

Talked to the guys at DNA and they said it wasn't theirs. Wish I could just find some one to rebuild it for me.

 

It's a Harley Davidson Billet Shell. I have 2 of them. 5 3/4" light. Part # 67704-03 Trim ring and hardwear are still available.
Do yourself a favor, don't use the entire oring to hold the trim ring on. Cut 4, 1" sections and hold them in place with non petroleum grease and slide it on. You will destroy the trim ring if not when you remove it later on when prying the ring off.

 

Hopefully this helps. 1st one..

 

Second one.


Cheers