I am getting ready to remove the gas tube from the gas block on the front sight post on a BCM Mid-Length.
A buddy of mine told me that he wouldn't mess with removing the gas tube from the gas bock because when you go to put it back in, you won't know how far to push it in. I always thought that as long as you line up the pin holes, everything is good. Am I wrong in thinking that or is he wrong in telling me this?


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