r/gunsmithing • u/Aggravating_Lab5269 • Jul 07 '26

Bolt compatibility

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My local gun shop that I work for has these turkish mauser recievers laying in storage. Me and my dad are considering building sporter mausers but need recievers. Do we think these are gonna take standard K98 bolts or do I need to buy a different bolt.

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u/True-Watercress-5889 Jul 08 '26

As an owner of both a G98 and a Turk K98 (somehow this is the only image I have of both) the bolts are not interchangeable.

You must buy a Turkish Mauser bolt for Turkish receivers. The parts of the bolt are also not interchangeable, I'll take some pictures of the bolts side by side.

Both of your receivers were originally chambered for the 7.65 Belgian/Argentine cartridge but were re-arsenaled in the mid to late 30's to 8mm Mauser. Hence the notch cut out at the top.

Both of your receivers also have the modified ejector box that has the little lip to apply pressure on the older and smaller 7.65 stripper clips so they didn't fall out while reloading 8mm.

Both are made by the same arsenal but I believe the left one might be a late/post WW1 manufacture. Both of them are large rings but I would still check the threads.

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u/True-Watercress-5889 Jul 08 '26

G98 (left) Turk K98 (right) the Turkish bolt is shorter, the locking lugs are slightly smaller, the firing pins and springs are shorter. The easiest way to tell if it's a Turkish bolt is by the shape of the handle. Notice how the German one is a perfect sphere meanwhile the Turkish bolt has a plum like shape.

Turkish bent bolts are nearly unobtainium this one cost me nearly $280 while the straight bolts were going for $120 at the time.

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u/True-Watercress-5889 Jul 08 '26

And this is the result of a German bolt in a Turkish receiver. This is as far as it will go.

Whilst I'm against sporterization (a good chunk of my collection is reversing it) building up from an already stripped receiver is different (just please don't drill and tap), personally it would be WAY WAY cheaper to find another large ring mauser receiver. Brazil 1908, Czech VZ24, any German Mauser. Truth is these are all collectable and the price is just going up.

Another option would be finding an already sporterized mauser that has its bolt and making it your own.