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Poor quality control - Jacob Grey Firearms 9mm Spiral Compensators

by Isaac Kim, Verified Owner from CA, United States Written on September 13, 2026
Review for Jacob Grey Firearms 9mm Spiral Compensators
Jacob Grey Firearms 9mm Spiral Compensators
Jacob Grey Firearms 9mm Spiral Compensators
List: $89.00 $30.62 Save 66%
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Isaac Kim's Review of Jacob Grey Firearms 9mm Spiral Compensators

I purchased this because of the name and looks pretty cool. But noticed there are leftover burrs leftover from milling in almost every hole. Proper quality control is not done. It shoots ok on my AR-9, I cannot tell the difference between this and my original muzzle break.
Pros:
  • Looks cool
Cons:
  • poor quality control
Best Used for:
  • paper weight
Would Recommend: No
Was it helpful to you? Yes | No
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Last updated 2026-09-14 UTC.