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I bought a set of these from Firearms Outlet Canada during their last sale. They no longer come with the epoxy even though it's listed in the instructions. I confirmed with F.A.C. that none are arriving with it, probably some border/HAZMAT issue. Anyway, I already had some Devcon and I will pin it as well.
Another issue I had was not being able to find a 6/40 tap. I just grabbed some 6/32 socket cap screws and used them instead as I have that in my tap and die kit.