No, actually, it’s not. Again, I didn’t know taccom made one specifically for the AR10; it must be a newer product. I used the one they make for an ar15, but this one for the AR10 should work fine. Seems a lot of new stuff has hit the market.
I understand the port on the bolt carrier can be fully opened, but the question will be what force is applied on the carrier even when the port is fully open? I do not have any experience with ported carriers, so I have no idea. I assume, and I could be wrong, that even fully open, the carrier will still have some amount of force applied. With an adjustable gas block, I can completely block the gas to the carrier and tune by opening it one click at a time, I’m not sure it will work that way with a ported carrier.
Again, I would call 2A and ask them if a fully open port on their carrier will vent all of the gas without applying too much force on the carrier.