03-02-2021, 01:07 AM
I tried Loctite 641 a while back but it never improved group sizes. It's designed to fill voids in tight cylindrical gaps and harden with almost no bond strength, so you can remove it later.
The fit was already tight so not needed in the end. It was more an experiment to see what all the talk of gluing was about. 641 does what it's supposed to do and I imagine it would improve things if the fit was more sloppy.
That said, I would concentrate on squaring the upper and getting a quality fitting barrel and nut before reaching for the glue.
The fit was already tight so not needed in the end. It was more an experiment to see what all the talk of gluing was about. 641 does what it's supposed to do and I imagine it would improve things if the fit was more sloppy.
That said, I would concentrate on squaring the upper and getting a quality fitting barrel and nut before reaching for the glue.