I'm seeing both the Rocksett and Vibra-Tite on Amazon. Looks like it's $16 whichever way I cut it for something that will expire before I have a second use for it.
I can get Locktite 272 locally, but it only goes to 400 deg.
Apparently you have to stick both the Rocksett and the Vibra-Tite in the oven at 250deg for 10 minutes to activate them. I've never baked a gun before.
Or maybe I'll just save installing this until the can comes in, then have the LGS gunsmith do it, since he wants to align the can with my barrel, which he modified. He'll probably throw in a few dabs of the Rocksett for free.