Microtech Tachyon III Balisong Butterfly Knife (4.5" Black) 173-1

Our Price: $299.00
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Item #BHQ-30339


  • Overall Length:10.00"
  • Blade Length:4.50"
  • Cutting Edge:4.25"
  • Blade Thickness:0.16"
  • Blade Material:Elmax
  • Blade Style:Clip Point
  • Blade Grind:Flat
  • Finish:Black
  • Edge Type:Plain
  • Handle Length:5.50"
  • Handle Thickness:0.50"
  • Handle Material:Aluminum
  • Color:Black
  • Weight:4.07 oz.
  • User:Right Hand
  • Pocket Clip:Tip-Up
  • Knife Type:Butterfly
  • Brand:Microtech
  • Model:Tachyon III
  • Model Number:173-1
  • Country of Origin:USA
  • Best Use:Collection
  • Product Type:Knife


The latest generation of the Tachyon butterfly knife, the production Microtech Tachyon III, distinguishes itself from previous models with milled, single-piece channel construction handles, a spring latch, and a standard pocket clip. The blade showcases a non-sharpened swedge-ground tip and milled grooves with the Microtech logo, production date, and blade steel markings up front.

What would a brilliant design be without that smooth action you crave? The Tachyon III exceeds all expectations with an advanced ceramic ball-bearing pivot assembly that eliminates handle play and produces first-class flipping dynamics. The pivots utilize Viton o-rings for load dampening, and heat treated stainless steel retainer plates ensure long-lasting performance.

This Tachyon III model has a black finished Bohler Elmax steel clip point blade and durable type III black anodized handles. Includes adjustment tool.


Customer Reviews

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First Impressions, Limited Usage (so far)
Philip E.
The thing is beautiful! But you already knew that. Balisongs are already a breed apart, but the lovely handle cutouts, fantastic clip, and rounded latch all add to the simple beauty of Microtech's creation.

Size, weight, ease of carry:
It's long. Quite long, closed or open. But it's light! I actually carried this at work and was left impressed. I didn't feel like my pocket was taken up. I didn't feel like I had a huge weight to worry about.
Actual ease of carry, though, is iffy. It's a fan knife, and therefore "scary." As far as the quality in its size, and weight, it's a home run.

Materials, durability:
Some reviews I've seen, up to this point, have said the handles were T8, 6-series aluminum, or even titanium.
This is not correct. For this particular model, the handles are 6061-T6 aluminum.
So far, the aluminum looks like it fights deformation and flex and fights it HARD.
Also, in this particular model, Elmax steel is used for the blade. I'm sure Microtech does great work with M390, but I've always had excellent luck with the toughness of Elmax, and M390 can have a very delicate heat treat process.
My own opinion: get a model with Elmax.

Your mileage may vary for speed, but the flipping action is super smooth. The pivots have multiple captured bearings.
Lockup, in the closed or open position, is solid.

Price/competitive options:
This point in the review is slightly disappointing, and for a couple reasons. At $300, I think most of us expect a balisong to have titanium handles.
I can understand why this knife is not. The milling, precision, and treating that went into this knife is probably where a chunk of that cost went.
Having said that, this knife finds competition in the Benchmade 6x, Benchmade 32/51, BRS Barebones, Combative Edge L1.
I don't personally like the design of the 6x versus the old 4x, so I would pick this knife over that.
The 51 may actually be a solid choice! I've heard of some breaks happening in those, however, so that's worth some thought.
The Barebones is solid, but the handle milling is a little bit too tacticool for my own liking.
Combative Edge's L1 is easily the closest competitor in my mind. It's elegant, but robust. It's simple, but beautiful. However, the handles on that L1 are huge, and flat.

Bottom line: the Tachyon 3 is worth the money, given its competition. (Long term durability remains to be seen.)
Love this knife
brock m.
Love this knife a lot. Thought I was gonna be disappointed but I was proven wrong. It flips really nice and feels great in hand, should have bought two.
Christopher S.
I had reservations about purchasing this knife. I own a Tach 3 with Titanium handles and I've been waiting for the production run to buy another. I was extremely disappointed once I found out that the production run would have aluminum handles (especially considering the price). IMO a knife made with aluminum handles should never be this expensive. Please be aware that the rating and review I'm giving doesn't have price factored in to it.

Anyway, I reluctantly decided to purchase this knife with the thought that I would just return it and get a Ti handled version if I didn't like this one. To be honest, I was pleasantly surprised with this knife. This one flips extremely "fast" should you choose to do so. Balance is extremely good IMO (however flippers vary on what the balance of a knife should be for their flipping style). There is almost zero blade wiggle or handle play. I have many different bali's in a wide range of price points and they all have there own unique quality and this one is definitely a home run in a wide variety of characteristics that a bali should have (price not considered). This knife is a tad light however, heavier than a 51 and larger. This knife will be staying in my collection, the more I flip it, the more I like it.

If you are on a budget and were planning on buying a 51, I would say wait and save up an extra $55 for this one. This flips, hands down, 10 times better than a 51. You won't be disappointed.

I've only been flipping this knife for about 2 hours now so I can't speak of the durability. I really don't know how the aluminium handles and the black anodizing will hold up over time. I really don't care about the ano not holding up because I'm planning on changing the color scheme anyway. I mod every knife I own to "make them mine". I just hope that the aluminium handles hold up, time will tell.