Several on here have had the Sabre barrels and not had any problems, why would you think they are not SAAMI chambers? I don't remember seeing anything in the description stating otherwise. Also those barrels are more than a few years old.
The upper is probably the cheapest way to get into a Grendel unless someone gives one to you.
I stand corrected.... the description says Grendel II. I don't remember seeing that when I bought the barrel last year.
The upper is probably the cheapest way to get into a Grendel unless someone gives one to you.
I stand corrected.... the description says Grendel II. I don't remember seeing that when I bought the barrel last year.