Review – Ritter RSK Mk5

Living a regular life in the city isn’t normally linked to carrying a knife. The act of even having one on you is something most office dwelling city folk would find a bit awkward, to say the least. Be honest, when was the last time you went into a high rise office building and saw people carrying knives? I sure can’t remember.

But contrary to what we’ve learned is the etiquette, you will have to start carrying a knife as it is instrumental to your survival. The way I figure it is, that having a small knife with you in your urban survival tin is a good idea from a survival perspective and it´s easy enough to conceal so you won’t alarm any of your colleagues.

CRKT Ritter RSK Mk5
CRKT Ritter RSK Mk5

Building my urban survival tin I quickly ran out of space. Maybe that’s a beginners problem, I don’t know. But it did show me that if I wanted a knife in my survival tin it had to be compact and lightweight and it had to be all round impressive enough to wanna give up the precious space for it.

In my search for the ultimate tiny knife I ran into the CRKT Ritter RSK Mk5. A knife that has specifically been designed to fit into an Altoids survival tin and has some impressive specs that hammer the point that this is the knife to get even further home.


Specs of the CRKT Ritter RSK Mk5

Weighing in at a mere 0.9 ounces it truly is the compact, lightweight design I am looking for. The weight is kept so low in part by adding two holes in the blade and one in the handle and the fact that it is a fully skeletonized knife.

CRKT Ritter RSK Mk5
CRKT Ritter RSK Mk5

The sheath itself weighs 0.3 ounces and is made of Zytel. I had to look Zytel up since I had never heard of it before. It is a trademark owned by DuPont and used for a number of different high strength, abrasion and impact resistant thermoplasticpolyamide formulations of the family more commonly known as nylon, often with varying degrees of fiberglass, from 13% to 60%, added in for additional stiffness. In other words, its plastic, only a bit stronger.

It is a fixed blade, wide-chord drop-point knife. Being a fixed blade potentially offers some advantages to offset the shorter blade and handle. Most important here is there being no joint or lock, reducing complexity and points of failure.

The drop-point has the advantage of being strong and it sheaths easily which is probably its best attribute. Quite a few sheath knives are drop points, it’s a very popular style. Many modern hunting, field dressing, and skinning knives are drop points.

It has a high carbon steel blade. 3Cr13 stainless steel to be exact, which is hardened to 52-55 HRC. It’s got just enough carbon (0.35%) to have acceptable edge holding and the relatively high nickel (0.5%) adds toughness. CRKT has used it extensively with good results in other products. Another plus is that is has a pretty high resistance to corrosion.

It has a curved handle for a two finger grip. If you’d like a little more grip you can use the lanyard that comes with it to lengthen the handle. I tried that and it does indeed work, but in the end I don’t feel that the lost space for the lanyard is worth the extra grip. You need to see for yourself what you like best, a little more space or a little better grip.

On the thumb rise we find a little bit of “jimping” or “gimping” that, together with the jimping on the underside of the handle helps prevent your fingers from slipping forward onto the blade’s edge. It doesn’t look like much, but when you hold the knife firmly the gimping ‘grabs’ your skin preventing the sliding of your finger(s).


All in all I find the Ritter RSK Mk5 a great choice when it comes to picking a knife for your urban survival kit. I find it easy to use, in spite of my rather large hands, and it does exactly what I think I’ll be using it for in case of an incident where I need to survive for 12 to a maximum of 24 hours in the city. It’s great for making fuzz sticks to start a fire and constructing shelters. The promotional material says it’s also good for gutting a fish, dressing game or for self-defense, but I haven’t used it for that yet. I do expect this knife to be good at those things as well though.

If you like the Ritter RSK Mk5 and you would want one yourself you can follow the links to it on Amazon. These are affiliate links however, so if you decide to use them I will get a small commission, at no cost to you. In case you do, let me just thank you in advance. I really appreciate it, thank you so much.

If you would like to add to the conversation please do leave a comment down below. I really value your feedback and love to hear what you think.

Thanks again, and hopefully till next time

1 thought on “Review – Ritter RSK Mk5”

  1. Hello, I would like to see a comparison between RSK Mk5 and the finger paw knife sold on ebay. I am sure the RSK Mk5 it made of better metal but I do wonder how the finger paw would hold up in a side by side test.

    GOD Bless you all


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