I know the 1970 Barrels are for Yugos
and the 1975 patterns are for Romi and Hungarian.
But there is no mention of which Barrel pattern one would buy for the Bulgarian Stamped receiver Trunnion.
Any help is greatly appreciated.
Edit: Sorry, didn't read 47, thought it said 74.
Is this for the Russian Tula kits being sold as Bulgarian? Link to the kit you have?
Should be a euro AKM pattern such as Romy but some guys on the AKforum say some parts fit a little loose.