I was hoping someone can help me with picking the right gas port size for a 16" mid gas system. I'm running a carbine buffer and tube. I have an H and H2 buffer. I was told that a .750 might be to big. I know there are a few sizes out there for 16" middies . I keep finding the .750. I'm going to agin show Saturday and want to figure this out. I don't want to over or under gas the operation.
Last edited by Sgt_Skrb_25; 08-16-2012 at 03:43 PM.
Lol ur port is not 0.75". That measurement is the thickness of the barrel where the gas block mounts. It ab be .625, .750 and I belive a bull barrel is .925 Unless you have the proper hardware or are willing to have a gunsmith do some custom work on it, the gas port is already drilled by the barrel maker. Gas ports are not a stat you should really worry about when assembling an AR.
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