07-07-2016, 05:11 AM
I don't use glue on my guns, except for the gas block screws.
I don't know if I would get noticeably better groups if I did but I doubt it.
My rationale is that I don't need to seal the gas block because I need the gas that might be escaping. I have too much gas as it is and so I regulate it.
If you source a quality upper there should be no play in the barrel/upper fit. If there was I would use glue. As it is I use Castrol high pressure/high temp moly grease and pay attention to barrel nut torqueing.
Some people are passionate about the use of glue so in deference to them I say...each to their own.
I don't know if I would get noticeably better groups if I did but I doubt it.
My rationale is that I don't need to seal the gas block because I need the gas that might be escaping. I have too much gas as it is and so I regulate it.
If you source a quality upper there should be no play in the barrel/upper fit. If there was I would use glue. As it is I use Castrol high pressure/high temp moly grease and pay attention to barrel nut torqueing.
Some people are passionate about the use of glue so in deference to them I say...each to their own.