Possibly a VERY RARE Mauser K98k Rifle – Unfinished Portuguese 1941 Contract M/937B Re-Issued as 1942 German byf K98k

Batteriechef

Active member
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Hello from Norway! :)

I'm a new member on the forum. I was referred here from another militaria collecting forum, where a member suggested that you might be the experts who could provide me with some
answers, information, or expert opinions on this mysterious K98k rifle. (y)

RIFLE DETAILS
  • Manufacturer: Mauser-Werke Oberndorf (byf)
  • Production Year: 1942 (1941)
  • Serial Number: 8225 (z block)
  • Waffenamt: WaA 135
  • Finish: Original dark blued finish
  • Stock: Walnut (matching serial number)
  • Buttplate: Cupped (gqm 41)
  • Matching Numbers: Near 100%
  • Other Notes: Possibly originally part of the Portuguese contract?

So, I recently picked up this beautiful 1942-dated German K98k made by Mauser Oberndorf (byf) for a steal (like $400). But when I took a closer look at it, I thought my mind was playing tricks on me...
I was certain I could see the Portuguese crest on the front receiver ring! And it turned out it wasn’t just my imagination. Under the right lighting and at a certain angle, the crest is clearly
visible—along with the date 1941. The front receiver ring has clearly been turned down, or the markings sanded off, but what's left is the “heat signature” etched deep into the metal from
when these markings were originally roll-stamped or engraved.

My personal opinion is that this rifle was originally part of the second Portuguese contract for 50,000 standard German military-configuration M/937B rifles placed in 1941. Some sources state
that a total of 60,000 were made, as 10,000 were requisitioned for German military use due to the worsening armament situation in Germany. It’s worth mentioning that those roughly 10,000
seized rifles have turned up basically everywhere Mausers went—Russian captures, Norwegian F1 conversions, and more. I actually used to own a 1941 Portuguese-contract Norwegian F1
conversion years ago, so I can personally attest to that.

This particular rifle has all the bells and whistles you’d expect from the contract rifles, especially since by 1942, many German-issued K98ks from byf began showing “lesser” quality or simplified
parts and finishes. It seems that beautiful hardwood stocks were favored for export, while laminated stocks were becoming more common for the Wehrmacht at that time.

What this rifle doesn’t have is the serial number format typical of Portuguese contract rifles, which usually had a letter prefix in front of the numbers. Nor does the stock feature the large
Portuguese crest or serial numbers. For whatever reason, this rifle didn’t make it into the final contract—it never received a Portuguese serial number but does feature the crest and export
factory markings on the receiver.

My best guess is that this receiver was a leftover from the contract production, de-marked, and then assembled in 1942 as a standard German-issue rifle. There are no signs of a Portuguese
serial number, which supports that theory. This seems like the most plausible explanation, especially since so many rifles from the 1941 order were requisitioned and issued to the Wehrmacht
with crests still intact. It makes little sense that only a few would be reworked before reissue. I think the 1942 production date is the biggest clue—it suggests the rifle was assembled after
the contracted deliveries had ended (late 1942?). It's hard to say how many rifles were rebuilt or assembled in this manner, or how many still show traces of their original markings. But I suspect not many...

This rifle was brought to Norway during the war and has remained here ever since. It was not imported post-war or acquired from a collector.


Would love to hear your thoughts and opinions on this!

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Above: The Portuguese crest and production year is hardly visible on the front receiver ring from this angle.

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Above: It features a German serial number with German letter code (z block) after the serial number, along with the typical Waffenamt and proof marks found on both
Portuguese contract rifles and standard German-issue rifles produced by byf.

Below - next 4 photos: Here, the crest and production year (1941) are clearly visible.

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Below: From this angle, you can still make out some of the engraved leaf patterns from the crest, which at first glance appeared to be nothing more than surface scratches.

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Below: Here, we can clearly see the removed Mauser Oberndorf export/commercial marking beneath the newer 'Mod 98' marking.

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The rifle is an original 1942 Oberndorf K98k that was assembled using either a leftover or rejected receiver (scrubbed of course).
Likely a leftover IMO. In the previous year, Mauser used alot of Banner marked receivers but left the Mauser banner in place, but
scrubbed the receiver side rail of the "Standard-Modell" designation. There are earlier examples of Standard-Modells using
scrubbed military receivers, so it went both ways at Mauser.

A very nice example. If I may, we could use your images for the upcoming Volume IV if you would give permission.
If so, would it be possible to get the original higher resolution images.

Regards,
Bruce
 
Welcome! Nice rifle!
Your english is excellent (spent some time in US or with Americans?) Photography also excellent, you know just what we'd like to see! Is the bolt stop the non matching part?
 
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So, as you can see from the photos above, the rifle is nearly 100% matching numbers, with the exception of the trigger guard assembly and bolt release. I believe possibly that the trigger guard broke and it was replaced during
the war by a Waffenmeister, especially due to the fact that they magazine florplate was reused. Even the stock matches the rifle. The buttplate is from a different manufacturer, which is typical for byf production rifles. Interestingly, it is dated 1941, the same year as the initial Portuguese contract.

All in all, it’s a solid K98k in good condition. The bore looks great, and I can’t wait to put some rounds through it!
I'd really like to hear your thoughts on this mysterious rifle. Let me know what you think!

Best regards from Norway! :)
 
Please forgive me guys, did not see your replies straight away - I was busy posting photos! BTW - Thanks for the quick response! :):cool:

The rifle is an original 1942 Oberndorf K98k that was assembled using either a leftover or rejected receiver (scrubbed of course).
Likely a leftover IMO. In the previous year, Mauser used alot of Banner marked receivers but left the Mauser banner in place, but
scrubbed the receiver side rail of the "Standard-Modell" designation. There are earlier examples of Standard-Modells using
scrubbed military receivers, so it went both ways at Mauser.

A very nice example. If I may, we could use your images for the upcoming Volume IV if you would give permission.
If so, would it be possible to get the original higher resolution images.

Regards,
Bruce

Very interesting information, Bruce, and thank you so much for the lightning quick response! 😊

Another thing I find particularly interesting about this rifle is that it has a walnut stock. From what I understand, most byf rifles had laminated stocks by 1942. It is also notable that it has a 1941 dated cupped buttstock cover, which fits well with the Portuguese export contract timeline. By the way, were there any laminated Portuguese contract Mausers, particularly from the last batch of 10,000 delivered by 1942? It feels like this rifle may have been a bit further along in production than just a scrapped receiver. Just a thought.

With regards to the book, I would be honored if you used photos of the rifle in Volume IV! These are just snapshot photos, but I can definitely provide better quality images, as well as any specific angles or details you may need. I had a quick look at the forum before joining, and was it you who was asking for information on KM K98ks for a book as well?

Best regards from Norway! :)

Glad you decided to come over! Already getting reviews from collectors in the know. Offer to use it in publication is great. pics are great by the way. Welcome to the Forum.

Thank you so much for the kind words! I already feel very welcome, and I’ve only been a member for less than an hour. Fantastic help, great information, kind people, and passionate collectors — what more could you ask for? Thanks again for the warm welcome! :)

Best regards from Norway! :)

You know you have a nice rifle when it’s going in the book! Thanks for sharing, I’ve not seen a reused Port receiver like this. I myself am saving up for a good BYF 41 or 42

Thank you! I definitely didn’t expect the honor of possibly having the rifle featured in a book. :) That’s certainly a great thing to be saving up for, and I hope you find the beauty you’re looking for! :love:

Best regards from Norway! :)
 
Welcome! Nice rifle!
Your english is excellent (spent some time in US or with Americans?) Photography also excellent, you know just what we'd like to see! Is the bolt stop the non matching part?

Thank you so much for the kind words! :giggle:

As for my English — "not great, not terrible", I guess. I'm fortunate enough to have dual citizenship (Norwegian/US), but I'm 100% Norwegian. That probably sounded more complicated than it is!
I spent many years of my childhood and teenage years in the U.S. on holidays and vacations, but here in Norway we also start learning English in school from a young age, so that definitely helps. :giggle:

Yes, the bolt release, or bolt stop, is one of the two non-matching parts I’ve found on the rifle so far. The second non-matching component is the trigger guard assembly and magazine well, although the magazine floor plate and internals do match the rifle. I assume the trigger guard assembly was probably replaced during the war.

Best regards from Norway! :giggle:

1st I've seen one of these. Another cool variant in a rifle line with a LOT of cool variants. Thanks for sharing!

Thank you! :giggle: Yes, that is exactly why I love this hobby so much. There are always new discoveries to be made and information to explore and share! (y)

Best regards from Norway! :giggle:
 
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