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Extrema Ratio Dobermann IV Black

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Extrema Ratio Dobermann IV Tactical

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Extrema Ratio Dobermann IV Black

18+ Age Restriction Icon

In Stock

Available for Delivery



Back Order Item

Please note that this item will be dispatched once in stock. We estimate that stock will be here in 4 – 6 Weeks


Extrema Ratio Dobermann IV Black

Extrema Ratio Dobermann IV Black



Extrema Ratio specialise in military specification knives, conforming to military standards and precision manufacture. With a 6.3mm thick and 185mm long blade the Dobermann IV is capable of the toughest of jobs.

Originally designed to cater for both bushcraft and military use it is available in two different models, the Tac Black and the Classic. The Tac Black has a Mil-C coated blade which will not reflect sunlight and therefore not give away one's position.

It is supplied with a black cordura sheath with leg strap.


Code ER-04.1000.0184/BLK
Limited Edition: No
Brand: Extrema Ratio
Blade Material: NB90 Stainless Steel
Blade Length (cm): 18.8
Blade Thickness (cm): 0.6
Overall Length (cm): 31.7
Blade Colour: Black
Handle Material: Polymer
Blade Finish: Black
Sheath: Cordura®


  1. Superb - A1 Pro beater.Review by
    I bought the Africa version a couple of months ago and was so impressed I decided to get this black version for everyday use so I could save wear and tear on the shiny version (the same blade but with a black coating for £226 less!).

    The Doberman IV is an absolutely fantastic knife. Feels perfect in the hand and chops at least as well as my phenomenal chopping Cold Steel Kukri! Plus it cuts.

    Comes with an excellent sheath and like everything Extrema makes (I've got a Fulcrum S too) is top quality. I've never used an A1, but I guarantee it won't be better made or give greater value for money than this. Anyone who's thinking of buying a Fallkniven A1 Pro save yourself £150.
    (Posted on )
  2. JUST LOVE ITReview by
    I just love this knife, to me it has it all, I have seen the Youtube videos made by bush camping tools again and again, and it convinced me, I had to have such a knife; it is however not likely that I am going to make use of it to the same extent as BCT but I am going to use it.
    I suppose that it has all one can ask of a Camp/Field knife ...
    The EXTREMA RATIO DOBERMANN IV I just love it, the grip/handle, the blade, the scabbard/sheath is sturdy, it would have been nice with a kydex scabbard/sheath or the type of scabbard/sheath that comes with the Pugio dagger from Extrema Ratio.
    The knife was sent to me with UPS next day delivery Monday 31st July, due to bad weather in Cologne it was delayed one day, I recieved it on Wednesday 2nd August.
    Once again thanks to Richard and the staff at HH for an exellent service **********
    (Posted on )
  3. Fantastic knife, well balanced can handle many tasksReview by
    I've had this knife for over a year and it used it from the tropical jungles in the southern hemisphere to alpine regions in the northern hemisphere. Well balanced and easy to keep sharp, strong as and can take a beating if required. I've used it on meat prep, fire prep, fishing, camp chores. One of my favorite big blades, plus very comfortable. You get what you pay for.

    (Posted on )
    This is a great fixed blade, with a great scabbard. Blade including the ricasso - 7.25". Handle - 5". Stock - 6.3mm. Extended tang - 6mm. Balance point - .5" in front of the hilt (slightly blade heavy). There is no jimping on the spine. There are no sharp edges, except for the polished bevel. The massive swedge takes a lot of weight out of the blade. Designed for extended use, I would say. It is a pleasure to hold in the hand. Love the cordura scabbard. Everything is adjustable, and removable. It has a drain port, and quality snaps everywhere. It is very well thought out. Of course, you get what you pay for with E.R. I am very pleased with my purchase. (Posted on )

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