In a weak moment, I just bought a 5.45 barrel and bolt group.

I have a straggler trunion that I think is off a 74, but not sure. It has a wierd bullet guide, looks like a little bullet type... see pic below.
I have only built up 47s so far, and don't know the diff between some of the parts.

Also, will a 74 barrel take a 47 front site, gas block, and handguard retainer??

Thanks for the help.

the bullet guide looks like the lip on my -74 magazines so it could be a -74 trunnion.

It would be helpful to see the serial number data on the left side of the trunnion.  Near the serial number one can find a manufacturer's trademark (I know it's the combloc and they hated advertising).

That would give a clue as to its origin and model.

id say its bulgi ak74 and if you look on the side it should have the circle 10
but why guess just measure it
22mm=74
23mm=47

as for the barrel parts need alittle more info than given

hope this helps ya

Quoted: id say its bulgi ak74 and if you look on the side it should have the circle 10 but why guess just measure it 22mm=74 23mm=47 as for the barrel parts need alittle more info than given hope this helps ya

Yep, 22 mm. and circle 10. And...if I recall correctly, I bought it from you with a bunch of other stuff...