Less bulky alternative diffuser than SF FM-64

Is there a less bulky alternative to SF's FM-64 diffuser, similar to the slip-on ones that they (used to) have for the E-series? I know there are one or two alternative vendors for colored filters in that size, but I've not found a diffuser that will fit the Kroma (or U2) other than the FM-64.

I really like my new Kroma, except that the white beam is much too narrow for many of my purposes. The FM64 turns it in to the PERFECT light for me, except it makes the head so bulky and clunky that I can't easily fit it in my tool pouch or hold it with the thing attached.

Anyone know of any alternatives? I can live without the flip-off lid, and would actually prefer something that just snugly fits over the head.

Thanks

HCaul

id like to know this to for my M3

F70: https://www.candlepowerforums.com/posts/1610184

Thanks. I actually have an old F70; didn't realize they were still available. I was hoping, though, for something even less bulky than that. I don't care about the flip-top, if it cuts down on the bulk.

H.Caul