buffer weight for a 6.5 Grendel?

[VASCAR2]

I’m using carbine weight which came supplied with the collapsable M4 style stock. I use the supplied carbine buffer spring and it has been good to go as long as the barrel has the proper size gas port. I have a 16” carbine gas barrel that was way over gassed where I went with an adjustable Rubber City Armory gas key. I tried different buffer weights but the adjustable gas was the best solution on this barrel. My Faxon 16” Group Buy Monster barrel uses the mid length gas system but also functions fine with the carbine weight buffer or an H2.

If using a suppressor I think your better off to use an adjustable gas block.