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A bit more research on the Swedish K Variants


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M45 - Original version, gun metal gray, full auto only, removeable magazine well, V1 receiver end cap, large hole shroud

M45B - 1954, Swedish Green paint over gray, full auto only, riveted magazine well, V2 receiver end cap (reinforced), smaller hole shroud

M45C - Same as M45B but with bayonet lug on shroud

M45D - Same as M45B, but with select fire (semi/auto)

M45S - Same as M45B with integral suppressor (export only)

Egyptian KPIST (M45) was same as M45 above, under Swedish license on Swedish tooling.

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If you want to go down a rabbit hole the bolt safety had a few different versions of knurling. Some original versions had 2 lines, most had 3. 
 

Also, the early factory guns that had the barrel shroud with full knurling used a different set of riveted plates and retainer pin that catches the shroud nut. Later on the barrel shrouds had an additional retainer welded in 3 spots (expansion slot to) around the nut. Some TRANSFERABLE builds can have an issue with this because the catch pin is right on the edge of the shrouds nut…

I think there are 4 different sears that were used thru out the models listed above. 

Edited by Labanaktis
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2 hours ago, Labanaktis said:

If you want to go down a rabbit hole the bolt safety had a few different versions of knurling. Some original versions had 2 lines, most had 3. 
 

Also, the early factory guns that had the barrel shroud with full knurling used a different set of riveted plates and retainer pin that catches the shroud nut. Later on the barrel shrouds had an additional retainer welded in 3 spots (expansion slot to) around the nut. Some TRANSFERABLE builds can have an issue with this because the catch pin is right on the edge of the shrouds nut…

I think there are 4 different sears that were used thru out the models listed above. 

As many variables as the TSMG!

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19 hours ago, Rekraps said:

M45 - Original version, gun metal gray, full auto only, removeable magazine well, V1 receiver end cap, large hole shroud

M45B - 1954, Swedish Green paint over gray, full auto only, riveted magazine well, V2 receiver end cap (reinforced), smaller hole shroud

M45C - Same as M45B but with bayonet lug on shroud

M45D - Same as M45B, but with select fire (semi/auto)

M45S - Same as M45B with integral suppressor (export only)

Egyptian KPIST (M45) was same as M45 above, under Swedish license on Swedish tooling.

Nice summary, thanks.

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7 hours ago, Remo Williams 1 said:

Also the Swedes like to tinker with the size/length of the Magwell and on Rekraps favorite version the C, 2 types of bayonets.

IMG_0238.jpeg

Excellent info. I have the long bayonet. What a great gun.

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I'm sure in some cases bayonets still have their uses, (I seem to recall some WWII soldiers said theirs were used mostly for opening cans from their K Rations), but my personal opinion is they as useful as "tits on a boar hog" as a man I used to work with often said of such things.  And he was a combat veteran of WWII, fought in the Buldge and beyond.

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2 hours ago, BillinBama said:

I'm sure in some cases bayonets still have their uses, (I seem to recall some WWII soldiers said theirs were used mostly for opening cans from their K Rations), but my personal opinion is they as useful as "tits on a boar hog" as a man I used to work with often said of such things.  And he was a combat veteran of WWII, fought in the Buldge and beyond.

Have you not seen the latest zombie movies? Come on man......

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They had that discussion recently on Gunboards.com

The conclusion was useless in combat, very useful for crowd control and herding prisoners

https://www.gunboards.com/threads/brought-home-my-latest-machine-gun.1263313/?post_id=11466117#post-11466117

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On 1/16/2025 at 12:17 AM, Remo Williams 1 said:

I would love to know more about this variet

IMG_0237.jpeg

I like the standard M45 very much, but have always thought a fixed wood stock would be good alternative. Does anyone have more info on it?

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22 hours ago, JJX said:

I like the standard M45 very much, but have always thought a fixed wood stock would be good alternative. Does anyone have more info on it?

Really? Of all the smg's with folding stocks (including the MP38u40) the K has the most robust folding stock anywhere. It is as tight and strong as a wood stock by any measure. 

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On 1/16/2025 at 12:03 PM, StrangeRanger said:

They had that discussion recently on Gunboards.com

The conclusion was useless in combat, very useful for crowd control and herding prisoners

https://www.gunboards.com/threads/brought-home-my-latest-machine-gun.1263313/?post_id=11466117#post-11466117

I’ve felt the need to have a bayonet for every firearm I have that will accept it.  It was never a problem prior to 13 SEP 1994 when it was decided for me that I didn’t need it.

Even if I really don’t want or need something, I push back when told that I can’t. 🤣

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On 1/18/2025 at 3:34 PM, Rekraps said:

Really? Of all the smg's with folding stocks (including the MP38u40) the K has the most robust folding stock anywhere. It is as tight and strong as a wood stock by any measure. 

Yeah, but you can't buttstroke anybody with out bending it.

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5 hours ago, Don. said:

I’ve felt the need to have a bayonet for every firearm I have that will accept it.  It was never a problem prior to 13 SEP 1994 when it was decided for me that I didn’t need it.

Even if I really don’t want or need something, I push back when told that I can’t. 🤣

Truth be told, I do the same. If I own a gun with a lug, I find the bayonet. My sterling is the silliest SMG ever for a bayonet!

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3 hours ago, StrangeRanger said:

Yeah, but you can't buttstroke anybody with out bending it.

Well.... you have a point. 

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On 1/20/2025 at 3:45 PM, Rekraps said:

Truth be told, I do the same. If I own a gun with a lug, I find the bayonet. My sterling is the silliest SMG ever for a bayonet!

I have one for the Uzi.  It’s not as goofy when it’s wearing the wood stock, which is how it was intended I’m sure.  I prefer the muffler though, so the bayonet never leaves the cabinet.

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12 hours ago, Don. said:

I have one for the Uzi.  It’s not as goofy when it’s wearing the wood stock, which is how it was intended I’m sure.  I prefer the muffler though, so the bayonet never leaves the cabinet.

I'm just big on getting "accessories" for all my guns, which includes bayonets, spare parts, magazine pouches, etc. To me, it adds value and collectability to the rig and makes it easier to sell if I wanted to do so. So my MP40 has correctly dated magazines, magazine pouches, loaders and a super transport box. My K's have bayonets, brass catchers, night sights, speed loaders etc. What I have found is that gathering up all the accessories can be quite difficult and expensive. But to me, well worth it. 

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