1944 K31 – Swiss Model 1931 Karabiner Rifle

Why the K31 Swiss? While the plentiful and inexpensive Mosin Nagant is responsible for igniting my lust for old military rifles, the K31 Swiss is the rifle that leaves me […]

K31 Swiss 1944 karabiner rifleWhy the K31 Swiss?

While the plentiful and inexpensive Mosin Nagant is responsible for igniting my lust for old military rifles, the K31 Swiss is the rifle that leaves me nearly speechless.

And trust me… practically nothing leaves me speechless.

K31 Swiss 1944 karabiner rifle - TripletsSimply put, they are crafted, not made. The K31 Swiss shoots 7.5×55 Swiss ammo (Brownell’s link), which was never issued in corrosive form. Add to this the fact that the Swiss managed to stay out of armed conflict during the service span of the K31. So, these rifles usually spent a lot of time in the rack and very little time being shot. The K31 presents a trifecta of awesomeness that means most K31 Swiss rifles are superior shooting rifles by any standard, let alone by the standard of mass produced military service rifles.  I have just acquired reloading dies for the 7.5×55 Swiss round and look forward to working up loads for better accuracy in my reloading press. I am thinking about accessorizing this one a bit with a scope mount, muzzle brake, and maybe a recoil pad (click here for Brownells link to these).

How this Model 1931 Carbine (Karabiner) found it’s way to me
I don’t actually recall exactly how I found this rifle online last week at a dealer in … Indiana, I think. However, I do have a vague recollection of looking over the few pictures they had listed before putting it in the shopping cart. That is how it goes when the milsup bug bites you. The process of acquiring a milsurp rifle can be a blur.

Does it have a troop tag?

Sadly, no. I have 3 complete K31 Swiss rifles and only one has a troop tag. You can read about it here (link).

K31 Swiss 1944 karabiner rifle - Made by SIGWhat I know about this K31 Swiss rifle:

Not much…

  • It was made by SIG.
  • Production year was 1944.
  • Per the serial number it would have been the 407th rifle out of 51,900 made that year. (click here for the list of K31 Swiss rifle serial numbers by year)
  • It arrived with no sling or muzzle cap
  • It is not P marked, so was not purchased by the Swiss veteran upon leaving the service.
  • It has the smallest, faintest import mark I have ever seen on the bottom of the barrel by the muzzle.
  • The serial numbers on the receiver, barrel, magazine, and in the barrel channel of the stock and upper handguard all match.
  • The stock is stamped “XII 43” under the butt plate.

K31 Swiss 1944 karabiner rifle - Swiss stock cartoucheOverall condition

The walnut stock shows the typical plethora of light dings and dents throughout, with no major damage anywhere. When taken apart the interior of the stock looks brand new. It appears that this K31 Swiss rifle did not spend a lot of time in the weather. I haven’t even run a patch down the barrel yet, but just removing the bolt and looking down the barrel with a light I am impressed. The bolt shows little wear and cycles smooth. I expect this to be a very good shooter.

Here are some pictures:


About Jeff

Jeff is the Editor in Chief of Gear Report and a National Shooting Sports Foundation Media member. He reports on the outdoor industry, reviews gear for camping, hiking, shooting, hunting, paddling, backpacking and other active pursuits. A USAF veteran, Jeff earned a MBA in Marketing and Health Services. He specializes in consultative selling and internet marketing. As the VP of BD & Marketing, Jeff provides sales and marketing leadership to MGECOM, Inc. and helps http://MGECOM.com acquire new clients in need of solutions for online merchants in need of Affiliate Marketing program management. Jeff founded and manages Cress Sales & Marketing LLC, offering online sales and marketing consulting and services to online merchants and service providers.