That’s what I use the Vibra-Tite for. The GREEN, 567- High Temp retaining compound! I use it on my AR15 builds, between the Barrel Extension & Upper Receiver tenon. It takes up that .001”-.002” space in mine, and can help with severe fitting errors where the difference is .006”+.


Locktite has some of the same products. It’s all by the number used. Now I wouldn’t use Locktite 242/272 or Vibra-Tite 122,131 or even the Purple 250 for this job, as THEY are all thread locker compounds. Although there are people who do, I prefer using the correct compound for the job.