Who Makes The Best Barrels and Why is it Criterion?
This video details a custom AR-15 build featuring a Criterion Core 11.5-inch barrel, highlighting its balanced profile, 4150 steel construction, and chrome-lined bore. The build incorporates a Rifle Speed adjustable gas block for tuning, a Geissele MKV rail for rigidity, and discusses the performance characteristics of the Criterion barrel with various ammunition types, achieving sub-MOA with match-grade loads.










