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Lives up to the hype - Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel

by Pewpew4u, Verified Owner from MI, United States Written on February 20, 2026
Review for Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel
Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel
Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel
As Low As $529.99 Save Up to 29%
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Pewpew4u's Review of Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel

I wanted an accurate 6mm arc barrel. After reading lots of reviews I went with the Proof. I haven't shot a ton, but the first day I took it out it was printing .5-.75" groups. It's so good I want to get a better trigger (currently running a 2 stage 3.5) to see what it can do.
Pros:
  • Crazy accurate
Cons:
  • a little heavy
Best Used for:
  • bench shooting
Would Recommend: Yes
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Last updated 2026-05-07 UTC.