Journal · Collector’s Guide

K98k Mauser Buyer’s Guide — German, Czech, Yugo & G33/40

The K98k is the rifle of the Wehrmacht — the Mauser 98 action at its peak, chambered in 8mm, the benchmark every other twentieth-century bolt gun is measured against. But “a K98k” runs a wide range: a matching-numbers Mauser Oberndorf, a Czech Brno build, a postwar Yugoslav rebuild on German parts, or the rare mountain-troop carbine. The codes stamped on the receiver tell you exactly which one you’re holding. Here’s how to read them, from a Plano shop that handles surplus every week.

The K98k is the German service rifle of the Second World War: a Mauser 98 bolt action chambered in 8mm Mauser, with a 600 mm barrel and a five-round internal magazine. German-made examples are not marked Mauser. They carry a letter maker code and a two-digit year on the receiver, so byf 41 reads Mauser Oberndorf 1941 and dot 44 reads Waffenwerke Brünn 1944. Alongside wartime German rifles the market holds Yugoslav postwar rebuilds assembled on German parts and stamped with the Yugoslav crest over the eagle, and the scarce G33/40, a short Brno-built mountain carbine derived from the Czech vz.33.

At a glance

Caliber & action — 8mm Mauser (7.92×57 / 8×57 IS); Mauser 98 bolt action, 5-round internal magazine
How German rifles are marked — not with the name Mauser, but a letter maker code plus a two-digit year: byf 41 = Mauser Oberndorf 1941, dot 44 = Waffenwerke Brünn 1944
Common maker codes — byf and svw (Mauser Oberndorf), bcd (Gustloff, Weimar), dot and dou (Waffenwerke Brünn), ar (Mauser Borsigwalde), bnz (Steyr), ce (J.P. Sauer, Suhl)
Acceptance stamps — eagle-over-WaA Waffenamt inspection marks across the metal; Yugoslav rebuilds carry the Yugoslav crest stamped over the German eagle
Matching numbers — bolt, floorplate and small parts share the receiver serial or its last two digits; an all-matching rifle commands a strong premium
C&R threshold (2026) — made 1976 or earlier; every wartime K98k and G33/40 qualifies on age
Most often confused with — the Yugoslav M48, a Yugoslav-manufactured intermediate-action Mauser that is not a K98k and shares no receiver parts with one

Reading the receiver code — who made it, and when

German K98ks aren’t marked “Mauser” — they wear a maker code and a two-digit year on the receiver. byf is Mauser Oberndorf, bcd is Gustloff, dou and dot are the Brno works in occupied Czechoslovakia, ar is Mauser Borsigwalde — followed by the year, so “byf 41” reads Mauser Oberndorf, 1941 and “dot 44” reads Brno, 1944. That code is the first thing a collector reads: it sets the maker, the year, and the whole context of the rifle before you ever count a serial number.

German, Czech (Brno) or Yugoslav — the three K98ks you’ll see

Most K98ks fall into three camps. Wartime German guns — the byf, bcd, dot and dou-coded rifles — are the core of the field and the ones collectors chase for matching numbers and Waffenamt proofs. Czech Brno rifles come from the same famous Zbrojovka Brno plant that built Mausers before, during, and after the war, and are superbly made. Yugoslav K98ks are postwar rebuilds assembled from captured German parts and stamped with the Yugoslav crest over the eagle — an affordable, honest way into a real K98k with genuine WWII German components.

Variants compared — German K98k, Yugoslav rebuild, G33/40

Feature	German K98k (wartime)	Yugoslav M98/48 (K98k rebuild)	G33/40
Caliber	8mm Mauser (7.92×57 / 8×57 IS)	8mm Mauser (7.92×57 / 8×57 IS)	8mm Mauser (7.92×57 / 8×57 IS)
Barrel length	23.6 in (600 mm)	23.6 in (600 mm)	19.2 in (490 mm)
Overall length	≈43.7 in (1,110 mm)	≈43.7 in (1,110 mm)	≈39.1 in (993 mm)
Weight, unloaded	≈8.6 lb (3.9 kg)	≈8.6 lb (3.9 kg)	≈7.9 lb (3.6 kg)
Production years	1935–1945	Postwar Yugoslav rebuild programme	1940–1942
Origin & arsenals	Germany and occupied Europe — Mauser Oberndorf (byf, svw), Gustloff Weimar (bcd), Waffenwerke Brünn (dot, dou), Mauser Borsigwalde (ar), Steyr (bnz), J.P. Sauer, Suhl (ce)	Yugoslavia — Preduzeće 44, Kragujevac, working on captured German rifles and parts	Waffenwerke Brünn, code dot
Receiver markings	Letter maker code plus a two-digit year (byf 41, dot 44); eagle-over-WaA Waffenamt acceptance stamps	Yugoslav crest stamped over the German eagle; the German maker code is often still readable underneath	dot code and year, as for German production
Identifying features	Solid walnut or laminated stock; bolt takedown disc; stock cartouches; duffle cut common on GI bring-backs	German wartime components reassembled to Yugoslav arsenal standard; mixed parts are normal	Short, light mountain carbine derived from the Czech vz.33; sheet-steel cap wrapping the left side of the buttstock
Matching numbers	Bolt, floorplate and small parts share the receiver serial or its last two digits; all-matching commands a strong premium	Generally not matching, since rifles were assembled from mixed parts	German convention as at left; survivors are scarce
C&R status in 2026	Eligible	Eligible	Eligible

Dimensions are nominal service specifications for each pattern; individual rifles vary with maker, year and later rebuild work. The Yugoslav M98/48 above is a rebuild of a captured German K98k and is not the same rifle as the Yugoslav M48, which Yugoslavia manufactured itself on a shorter, intermediate-length Mauser action. Russian-capture K98ks — wartime German rifles refurbished on Soviet lines and usually force-matched — are a further common category not shown as a separate column. Curio & Relic status is determined by an individual rifle’s year of manufacture — confirm current requirements with the ATF.

The G33/40 mountain carbine

The G33/40 is the connoisseur’s Mauser: a short, lightweight carbine built at Brno for the German Gebirgsjäger mountain troops, derived from the Czech vz.33. It’s notably handier than a full K98k, with a distinctive sheet-steel buttstock cap that wraps the left side of the butt to survive alpine hard use. Low production and heavy wartime service make survivors scarce and valuable — our DOT 1942 G33/40 is exactly the kind of piece that anchors a serious Mauser collection.

Matching numbers & Waffenamt — what drives value

On a German K98k, value is built from two things: matching numbers and Waffenamt acceptance. The bolt, floorplate, and small parts should share the receiver’s serial (or its last two digits), and an all-matching rifle commands a strong premium over a “parts gun.” The little eagle-over-WaA inspection stamps scattered across the metal are the wartime acceptance marks that prove originality. Import marks are common on U.S.-market guns and don’t hurt a shooter-grade rifle — but on a collector piece, originality of finish and matching numbers is most of the price.

Stocks, finish & the bring-back story

Wartime K98ks used both solid walnut and laminated stocks — the plywood-laminate wood is original and correct, not a repair, and actually more durable than solid walnut. Many rifles that came home with GIs show a “duffle cut” where the stock was sawn to fit a duffle bag and later reglued; it’s part of the bring-back story, not a defect. Look at whether the metal is honest wartime blue or a later refinish, and whether the stock cartouches and disc are intact — those details separate a collector rifle from a rebuilt shooter.

What to inspect before you buy

Matching numbers — bolt, floorplate, and small parts against the receiver serial; all-matching is the premium.
Maker code & Waffenamts — decode the receiver code, and confirm the eagle/WaA acceptance stamps read correctly for the maker and year.
The bore — 8mm bores should be bright with strong rifling; these are shooters when the bore is right.
Stock & cartouches — laminated or walnut, duffle cut or not, cartouches and stock disc intact.
Crest (Yugoslav guns) — the Yugo crest over the eagle confirms a postwar rebuild on German parts.

Caliber & shooting — 8mm Mauser

Every K98k here is chambered in 8mm Mauser (7.92×57 / 8×57 IS), one of the great military cartridges — still in production, widely available as surplus and new commercial loads, and hitting right in the class of .30-06 and .308. A matching-numbers K98k with a bright bore isn’t just a wall piece; it’s a superbly accurate, hard-hitting rifle you can take to the range whenever you like. One distinction matters before buying ammunition: the wartime German round is 8×57 IS, sometimes written JS, with a .323-inch bullet, while the older 8×57 J uses a .318-inch bore. They are not interchangeable, and modern commercial 8mm Mauser sold in the United States is loaded to the IS specification. Surplus 8mm is frequently corrosive-primed, which is harmless provided the bore is cleaned with a water-based solvent the same day it is shot.

Also on the rack — other Mausers

The Mauser 98 action armed half the world, and the K98k is only one branch of the family. If you want a different flavor of the same rugged action, we usually keep other Mausers on the rack — like a Turkish Ankara 1938 Mauser, a long-rifle take on the 98 at an entry-level price. The 98 action was licensed, copied and rebuilt across the world, and the family is wide: Turkey rebuilt and produced Mausers at Ankara and Kirikkale, Czechoslovakia built the vz.24 at Brno, Belgium’s FN supplied contract rifles to a dozen countries, and Yugoslavia produced its own M48 on a shorter intermediate-length action. All share the same controlled-round-feed bolt with dual front locking lugs and a third safety lug, the feature that made the design the template for bolt-action rifles ever since. Chamberings vary by country, so the caliber marking is worth reading rather than assumed. Browse the full rifle inventory for whatever’s in now.

C&R eligible — and the FFL part is easy

Every K98k here is over fifty years old and Curio & Relic eligible — with a C&R license these can ship straight to your door. Otherwise it’s the normal, painless routine: we ship fully insured to your local FFL, who runs the background check at pickup. In the Dallas area? Pick up in store in Plano and handle the rifle first. Every K98k is inspected in-house — browse the full rack of surplus & collectible rifles, or email sales@oldsteelarsenal.com for photos of the codes, Waffenamts, and matching numbers.

In the Case Right Now

Live inventory — every K98k and G33/40 currently on the floor. Each is one of one; when it sells, it is gone.

German K98k 8mm — ‘bnz’ 1941 Steyr$1,189.00

Yugoslav K98k 8mm — Factory 44, German Parts8mm Mauser$989.00

98 8mm Mauser (7.92x57mm / 8×57 IS/JS)8mm Mauser$825.00

G33/40 8MM8mm Mauser$3,750.00

98 8mm Mauser (7.92x57mm / 8×57 IS/JS)8mm Mauser$1,285.00

98 8mm Mauser (7.92x57mm / 8×57 IS/JS)8mm Mauser$1,585.00

K98K 8MM8mm Mauser$1,249.00

Shop K98k Mauser rifles in stock now →

Common Questions

What is a Waffenamt stamp on a K98k, and what does eagle-over-WaA mean?

A Waffenamt is a German military acceptance mark, applied by the Ordnance Office inspector who passed a part as fit for service. It appears as a small stylised eagle above the letters WaA followed by a number, and the number identifies the inspection office responsible for that factory. The marks are scattered across a rifle rather than concentrated in one place, turning up on the receiver, barrel, bolt parts, floorplate, bands and stock, because each component was accepted separately. Two things make them useful. Their presence shows the part passed wartime German acceptance rather than being postwar or replacement work, and the specific office number should be consistent with the maker and year stamped on the receiver. Soviet refurbishment lines frequently peened or defaced these marks, so weak, ground or struck-through Waffenamts are themselves evidence of a rifle’s later history rather than of a wartime fault.

What is a duffle cut on a K98k stock, and does it hurt value?

A duffle cut is a diagonal cut through the stock, usually forward of the receiver, made so a full-length rifle could be broken down to fit inside a duffle bag. American servicemen used it to bring rifles home at the end of the Second World War, and the two halves were normally glued back together afterwards, leaving a visible angled seam in the wood. It is a genuine artefact of the bring-back story rather than damage or a repair to a broken stock, and on an otherwise original rifle collectors generally treat it as part of the provenance. It does reduce value against an equivalent uncut stock, because the wood is no longer in one piece, but a well-executed cut on a matching wartime rifle is far preferable to a replacement stock. The seam is obvious once you know to look for it.

Is a laminated stock on a K98k original, or is it a later replacement?

Laminated stocks are original wartime German production. From about 1937 Germany moved much K98k stock manufacture to plywood laminate, layers of beech bonded under pressure, because it used timber more efficiently and resisted warping better than solid walnut. A laminated stock is therefore correct on a large share of wartime rifles and is not evidence of a rebuild, a repair or postwar work. It is heavier than walnut and noticeably more durable, and the layered edge is visible along the butt and forend once the finish is examined closely. Both solid walnut and laminate appear across the wartime period, and which one is correct depends on the maker and year rather than on one being better than the other. What matters more for originality is whether the stock carries the correct cartouches, the takedown disc and numbering consistent with the rifle.

What is the difference between a K98k and a Yugoslav M48?

They are two different rifles that are frequently confused. A K98k is a German Mauser 98 pattern rifle with a full-length standard Mauser action, and the Yugoslav rifles built on captured German K98ks are rebuilds of that rifle, usually designated M98/48 and marked with a Yugoslav crest stamped over the German eagle. The M48 is not a rebuild at all. It is a rifle Yugoslavia manufactured itself after the war at its own works, and it uses a shorter, intermediate-length Mauser action rather than the standard-length German one, so its receiver, magazine box and stock are not interchangeable with a K98k. Both are chambered in 8mm Mauser, both wear a full-length military stock, and they look similar enough at a glance that the names are used interchangeably in listings. The reliable separators are the action length, the receiver markings, and whether German wartime maker codes and Waffenamt stamps are present underneath the Yugoslav work.

What is the stock disc on a K98k, and what do the markings on it mean?

The disc let into the right side of the buttstock is a bolt takedown disc. It provides a hole and a bearing surface that the firing pin assembly is pressed against to strip the bolt without tools, which is why it sits at that exact height on the stock. On earlier rifles the disc was often marked, and on some prewar and unit-marked guns it carries stamped characters identifying a unit or a rack number. As wartime production simplified, the marked disc gave way to a plain disc and eventually to a simple hole through the stock with no disc at all, so which type a rifle has is a rough period indicator that should agree with the maker code and year. A missing disc on a rifle that should have one usually means the stock was replaced or repaired.

How can you tell an original wartime finish on a K98k from a postwar refinish?

Original German wartime bluing is a fairly deep, even blue-black that follows the machining marks left on the metal rather than hiding them, and it wears in predictable places: the muzzle, the receiver ring, the edges of the bands and wherever the rifle rubbed against equipment. A later refinish usually looks too uniform and too new for the wear visible on the wood, often shows softened or rounded edges from the polishing that preceded it, and frequently fills or blurs the small stamps. Soviet refurbishment applied a distinctive heavy, sometimes slightly purple or grey-toned finish over the whole rifle including parts that were never blued that way originally. The strongest single check is consistency: original finish, stock wear, and the sharpness of the maker code and Waffenamt stamps should all tell the same story about how hard the rifle was used.

Is a K98k the same thing as a Karabiner 98k or a Kar98k?

They are all the same rifle under different renderings of one German name. The full designation is Karabiner 98 kurz, meaning short carbine 98, which German practice abbreviated to Kar.98k and which English-speaking collectors most often write as K98k or K98. Kurz, the German word for short, refers to the rifle being shorter than the Gewehr 98 of the First World War that it was derived from, not to it being a carbine in the modern sense of a compact rifle. The variations are purely typographic and none of them denotes a different model, a different maker or a different period, so a rifle described as a Kar98k and one described as a K98k are the same pattern. The genuinely different designations to watch for are the G33/40 mountain carbine and the earlier Gewehr 98, both of which are separate rifles rather than alternative spellings of this one.

What does the letter after the serial number on a K98k mean?

German wartime serial numbers ran in blocks rather than in one continuous sequence. Each maker began a year at 1 and counted up to 9999, then started again at 1 with a lower-case letter suffix appended, working through the alphabet as production continued, so a number such as 4711 b belongs to the third block of that maker’s output for that year. The letter is therefore not a variant code, a unit marking or an inspection mark. Read together with the maker code and the two-digit year it places a rifle fairly precisely within a single factory’s production for a single year, which is why collectors quote the full string rather than the digits alone. The same number, with or without the block letter, is what should be repeated on the bolt, floorplate and small parts on a matching rifle.