Hello,
I am in the process of building a upper. I have a criterion barrel and vltor gas block that uses set screws. I want to have the gas block pinned for increased reliability.
I need helping figuring out what pin to buy to pin the gas block the the barrel. My vltor gas block only came with a pin for the tube.
So far I have gotten to 1/8 x 5/8 but 5/8 seems kinda long for a 0.625 gas block.
What do you think? What pin are you using in a .625?
https://i.imgur.com/hd9av1E.png
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