Buck 591 Paradigm Shift Automatic Folding Knife Brown G10 3" S35VN Satin

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12/31/25 01:00AM
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  • Overall: 7.375"
  • Blade: 3.0" S35VN, Satin, Spear Point
  • Handle: 4.375" Brown G10
  • Frame/Liner: Stainless Steel
  • Weight: 4.8oz
  • Clip: Tip-Up; Right Hand
  • Knife Type: Automatic, Bolster Thumb Slide
  • Lock Type: Bolster Lock
  • Made in the USA
  • Model: 0591BRS

The Paradigm Shift from Buck Knives is an Automatic knife that deploys instantly when the Shift Mechanism Bolster Lock is deactivated.
Slide the bolster up and your knife is open. It closes the same way and with the bolster lock, it prevents an accidental deployment in your pocket. 

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  • 5

    Posted by Jim Budnella on Jun 19th 2022

    Buck stepped out of the box on this one. The bolster release is great. The spri g action is strong. The release is very functional and positive, opening and closing. A lot of knife at an affordable price.