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Benchmade Mediator 8551BK Auto Knife Black G-10 (3.3" )

Original price $288.00 - Original price $288.00
Original price
$288.00 - $288.00
Current price $288.00

Benchmades has introduced the new 8551BK Mediator holds true to its namesake, mediating simple and lightweight, and durability and strength. The mediator is not overbuilt, employing some of the world's finest knife materials; the handle has G-10 handle scales with a milled chevron pattern and the blade is Cerakote coated CPM-S90V, offering top of the line edge retention. A safety lock on the handle prevents unintentional blade collapse and deployment. The piece is finished with a reversible tip-up, deep carry pocket clip and a lanyard hole. Sometimes its the little things that make the biggest splash.

Made in USA, this Benchmade mediator has a black G-10 handle and a plain-edged, black blade.


  • Overall Length:7.75"
  • Blade Length:3.30"
  • Cutting Edge:3.125
  • Blade Width:0.75"
  • Blade Thickness:0.115"
  • Blade Material:CPM-S90V
  • Hardness:59-61 HRC
  • Blade Style:Reverse Tanto
  • Blade Grind:Flat
  • Finish:Black
  • Edge Type:Plain
  • Handle Length:4.45"
  • Handle Width:1.00"
  • Handle Thickness:0.52"
  • Handle Material:G-10
  • Color:Black
  • Frame/Liner:Stainless Steel
  • Weight:2.89 oz.
  • User:Right Hand, Left Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Automatic
  • Opener:Push Button
  • Lock Type:Plunge Lock
  • Brand:Benchmade
  • Model:Mediator
  • Model Number:8551BK
  • Country of Origin:USA
  • Best Use:Everyday Carry, Tactical
  • Product Type:Knife

Customer Reviews

Based on 3 reviews
Joe L.
Enjoyed working with your staff

Prompt service enjoyed working with y’all.

Mediator is the perfect edc

What can I say about this knife that isn't apparent by just going over the pictures.
Very well designed, super light weight, easy to carry in any pocket.
Feels good in the hand, and is faster than any thumb stud opener.
Scales and design is simply beautiful.
Benchmade had been making auto knifes for decades, this knife is the cumulation of all those years & designers that helped BM get to where they are today.
A bit on the smaller side, but then again carrying the early BM Auto's was not this easy.
North River Outdoors has a superb choice of many Benchmade knifes, so if auto's aren't your thing, take a look around.
Can't go wrong with a single Benchmade, all their knives deserve five stars.
Upon getting it into my hands.......bought a second one just because its that good!!

David M.
Mediator has better alternatives

The mediator certainly has the quality you would expect from Benchmade Knives, but I believe the Benchmade Bugout is a superior choice.

1) The Bugout is less expensive.
2) Both Mediator and Bugout are roughly the same size and weight.
3) Bugout is legal in states that restrict automated knives.
4) The Bugout blade can be deployed just as fast as the Mediator automatic.
5) The Bugout is much easier to close one handed.

My conclusion: Unless you have a niche need for the Mediator then you should give heavy consideration to the Bugout.