I am thinking of SBRing my MK Arms MK-760 carbine and I was wondering if anybody knows if anybody, that has either the 8” or 16” barrels, which is basically the same barrel used in the old Smith and Wesson Model 76 SMG?

I know that this isn’t a common barrel… Especially now, so this is NOT going to be something that is easily to come by in 2024. After doing an internet search, I came across two sites that advertised MK760/S&W 76 barrels, but the sites seem dead and there are no responses to my emails.

If there are nobody making barrels for the MK760/S&W 76, does anybody know of a custom barrel maker that can make one?

Thanks for looking!!

KAK has some barrels and shrouds.
https://kakindustry.com/specialty-parts/firearm-platforms/smith-and-wesson

I have their long and short threaded barrels and their short shroud for my MK760. No complaints.