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Yankee Hill Machine Anti-Rotation Pin Kit (Gen2 Mod2) By KNS
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ChristoStad's Review of Yankee Hill Machine Anti-Rotation Pin Kit (Gen2 Mod2) By KNS

The YHM/KNS Anti-rotation pins are a staple on all of my AR builds and upgrades.
Lots of folks say they aren't necessary, but just yesterday, after a short session of buffer testing in a a 9mm SBR, a buddy of mine texted me and said, "My trigger pin on SBR was partially out," followed shortly thereafter by, "Looking for my KNS ones."
If you run your gun, you will get pins walking and screws loosening. These are facts of life.
God, in his infinite wisdom, gave us Loctite and KNS pins, because God is a real American and He loves guns! ;-)
They are inexpensive insurance and they look cool.
Pros:
  • Functional
  • aesthetically pleasing
Cons:
  • None
Best Used for:
  • every AR everywhere
Would Recommend: Yes
Was it helpful to you? Yes | No
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