Has anyone found a successful bore guide for AR in 6 ARC?

My Dewey 6.5 Grendel guide obviously does not make a  seal, therefore useless.

BoreTech makes an AR bore guide for 6 Arc.

Yeah, I saw that. I'm going to have to call them because they show it as 6.5 Grendel / 6mm ARC. I don't see how it would properly seal in 6mm if it's also made to fit 6.5.

PMA Tool

I would call Eric at Possum Hollow.
I just ordered Bore Guides for 204 Ruger, 5.56, 6.5 Grendel, 300 HAM'R, and 22 LR. I am sure that he can make one for the 6 ARC.  I have made two orders lately. I have gotten both orders in under a week.
If you have multiple AR Bore Guides it would be handy to find some one who can engrave them for identification.

EDIT: My Possum Hollow Bore Guide for my 6.5 Grendel works just fine for my 22 ARC. I am sure it will work just fine for 6 ARC also.

Bob R