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Discussion Starter #1
Does anyone know what the differances are between the AK4 and the G3?

I looked through the HK in Sweden thread and only found mention of the different sights and the brass catcher.
 

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afaik, it's basically the same rifle, with small variations. The AK4 has the same thumb groove bolt carrier as the norwegian AG3 and the danish M66(G3A5). It also have a trigger housing marked S-P-A in stead of S-E-F, The trigger housing also have reinforcement dimples in the area of the front pin hinge point. The rear sight drum has four diopter peeps that are marked 2-3-4-5 indicating distance in hundreds of meters. The stock has the heavy G3 buffer.
The upgraded variant is called AK4B and have the iron sights replaced by a picatinny rail/Aimpiont combo specially designed for the swedish government.
It also has a different charging handle.

I'm sure our swedish friends will chime in if I forgot something.
 

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I know the Swedes adopted the AK5(FN FNC) in the late 70s, does the AK4 still see much use?
 

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More info from HKPRO forums:
AK4B thread w/pics

AK4 thread w/pics

Oh, and I forgot, at least the AK4 also sports the port buffer, but it appears to have been removed from the AK4B to accommodate the picatinny rail.

The AK4/AK4B is still in use in Sweden by Hemvärnet -Home defense-
Sweden also gave away a lot of AK4's to the baltic states a few years ago.
 

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Discussion Starter #5
Thanks for the replies and links to threads. I dont know why those threads do not show up in the results when I search for AK4!?
 

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The bayonet lug is different, locking lug hole is in a different position. Type 2. Hk bayonet will not catch and lock in. Three crown marked bayonet looks identical to the hk one but latch is off by a few mm. I see a lot of people complain their bayonet doesnt fit the lug they bought.... this is type 1 lug hk, with type 2 swedish bayonet.
 
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