New build buffer and gas block question

[Bill257]

Thanks LRRPF. I will get a H2 on order. I am familiar with aligning the gas port and tube and tightening in the barrel. But, I have not previously used locktite on the gas block or tube - I will be sure the front end is sealed up. Agree with lapping the upper, cleaning up any areas that need polishing on the chamber end of the barrel, and bedding the barrel. Much easier to take those small steps when it's apart the first time rather than troubleshooting or wondering if accuracy would be better if I saved some time during assembly.
Plan is to shoot factory 123 gr ammo for brass. If that works out, it can stay on a diet of hand loads with similar weigh bullets.
Still a few weeks out on the barrel so I have time to prep the upper.