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12.5 6 arc
Written on Dec 22, 2025
Review for
Shaw AR-15 6mm ARC Threaded AR Barrel
I purchased the 12.5” 6mm arc barrel along with the Superlative Arms gas block. The accuracy has been ridiculously great. Unbelievable is a better word. Hornady 108 factory has been around 2315-2365 fps depending on which lot of ammo is being shot. Hornady 105 is around 2335 consistently. Shooting this barrel out to 800 with very good results. Tuning the gas was very simple. Reliability through 5-600 rounds has been spot on. Everything shot has been suppressed as well. After 50 rounds or so it seemed to “break” in. I purchased two other different manufacturer’s barrels to compare and the Shaw was much better from the samples I have. The Shaw was comparably cheaper than one other. My sample of one has been basically perfect and will be exploring other Shaw barrels in the future.
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