All the way open, it would be the same as the gas port in the barrel.

No adjustable gas block can make more gas than the barrel.

The ideal case is generally to buy a barrel with a properly sized gas port and drive on

Quote Originally Posted by TMS951 View Post
All the way open, what is the equivalent gas port?

I could see that if your gas port is only so big, as you open the gas block past the flow of that port you’d see no difference.

Seems like a cool gas block, but for it to be ideal it needs a certain gas port to assure it flows.

Any info here would be appreciated. Like to build a 16” mid upper but down know what size gas port