I was on the short barrel section on Arfcom. A member asked about a 12" grendel look what his first reply was
I had a pinned 14.5" Grendal. I sold it and am back to a 20". Unlike the 6.8 and 300 blackout which are designed for and better suited for a shorter barrel, the Grendal was designed for a longer barrel. Just looses to much, IMHO.
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