I'm in the planning stage of assembling an AR. I don't need another one. I just want one that's been assembled to my own standards.
I pretty much know what's involved. My only quandry is how to know if the port in the gas block is perfectly aligned with the gas hole in the barrel.
In a perfect world all gas block ports from every manufacturer would line up with the gas hole in barrels from every manufacturer.
What is the slick trick to insure that both are lined up right?
I've watched a few videos and know what's involved in order to just affix the gas block to the barrel. But it seems to me that you just have to trust that the port in the block and the hole in the barrel are both exactly where they're supposed to be. I've done enough machining to know that that's not always the case.
So how do you make sure that they align?
