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Discussion Starter #1
Its pretty much proven consensus in the AK community that cast trunnions are garbage, but I am a bit curious about the role of casting in the manufacture of other AK parts. I was reading on a site the other day that many places use casting instead of forging for certain parts, mostly as a means of weight management, as casts are generally lighter. Ive built one AK from a bulgy kit back in 09, and it appeared to me that the bolt carrier was made from a rough cast and then machined to spec, but it appeared that the sight blocks and everything else were forged.
are casting used in AK parts often? does it vary country to country? time period to time period?
opinions on weather this is good/bad/blah?
 

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More recent GB and FSB, RSB rear trunion blocks are cast in some cases.
Not sure they are any lighter.
One key is the cast numbers or marks in the parts.

Bolts and bolt carriers are still forged AFAIK.

In some non milspec manufacturing almost anything could be cast.
 

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Discussion Starter #3
More recent GB and FSB, RSB rear trunion blocks are cast in some cases.
Not sure they are any lighter.
One key is the cast numbers or marks in the parts.

Bolts and bolt carriers are still forged AFAIK.

In some non milspec manufacturing almost anything could be cast.
I always thought the bolts were machined from billet
 

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Forged with Fég is the front trunion..
Bolt ..bolt carrier...
FCG and some other parts including the rear trunion.

Casted is the little stuff.



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