Something is needed to tame the gas even if you are shooting un-suppressed.
The gas port is claimed to be .081 which is large. I understand why they made that large, people use shit underpowered ammo and they want the barrel to be able to run it, but that is ot optimal for a smooth running rifle IMO
If you are running suppressed i would say def go with an adjustable gas block such as SLR.
If you are not running suppressed I dont see the need for an adjustable gas block, just something to reduce the port size. Adjustable gas blocks add more parts that can brake and i only use them if neccassary. Black river tactical sells a microtune gas block you can order with one of their gas block inserts. If you get the .076-.078 size that would likely be optimal for most ammo types shooting un-suppressed with an H buffer
MicroTune Gas Block
This is their gas block fixed port size so it is plug and play. I have one of these in a gun with over 5k rounds and it works flawlessly. They also offer a custom tune gas tube that i am using but only have 1k rounds or so on that rifle. it is working great so far and this option is very easy to use as well. Again if you go this option .076 or .078 port size depending on ammo type.