Microtech Ultratech OTF Automatic Knife S/E 3.4" Satin Serrated 121-5

In Stock
(4 reviews) Write a Review
Calculated at Checkout
Handle Color:
Blade Finish:
Blade Style:
Drop Point S/E
Blade Edge:
Part Serrated
12/31/25 01:00AM
Adding to cart… The item has been added
  • Overall Length: 8.4"
  • Blade : 3.4" Satin, Drop Point (Serrated)
  • Handle : 5" Black Aluminum 6061 T6
  • Weight: 3.6 oz
  • Pocket Clip: Right Hand, Tip Down
  • Opener: Thumb Slider
  • Type: Double Action, OTF (out the front) Automatic
  • Model: 121-5

As the flagship model of Microtech’s OTF lineup, the Ultratech® sets the standard for OTF technology. Proprietary technology allows the firing spring to be at rest in both the open and closed positions, drastically reducing wear on the internal firing mechanisms. The contoured chassis handle provides a lighter and more ergonomic feel and comes in a smooth, flat finish.The Microtech Ultratech is the first ever OTF (out the front) automatic knife produced by Microtech Knives. It features a 3.4" blade with various blade finishes and styles. The Ultratech features a 5" anodized 6061-T6 aluminum smooth handle with pocket clip, glass breaker and stainless steel hardware. Dual action thumb slide for automatic deployment and retraction.  


4 Reviews Hide Reviews Show Reviews

  • 4
    Great Quality Micotech...

    Posted by David Flanders on Jan 10th 2022

    Ultratech is a great quality knife. The only issue I have with it is, it takes a lot of thumb pressure to trigger it to open or close. I have mild arthritis in my right hand and can not open or close it. In my left hand its ok. Hopefully it will loosen up a little. I am right handed.

  • 5
    Micro tech ultratech drop point half serrated

    Posted by Jake on May 25th 2021

    I had been looking for this knife from all sorts of retailers and I guess I just got lucky with eknives as they had the exact blade style I wanted. If you wanna know how the knife itself is look it up on YouTube, microtech speaks for itself. But Eknives has been fantastic to order from, extremely fast shipping that I didn’t pay extra for, emails directly from the company letting me know everything I needed to know. A pack of sour patch kids in the box. What more could they do? I feel like they went above and beyond with a simple order and I am extremely impressed. I will definitely be looking at Eknives as my first choice on any future orders.

  • 5
    Great knife.

    Posted by Todd S. on Jan 11th 2021

    Fit and finish is top notch. Very well made high end knife. Everything I would expect from Microtech.

  • 3
    Ultratech s/e m390 121-5

    Posted by Martin Redfern on Apr 29th 2020

    too much slop for soo much money grinder mark finish on top

Videos Hide Videos Show Videos