Doh., sorry I meant the lower component pin that goes through the small round flat area on the bottom of the FSB. Looks like no pin.
The upper component pin is what retains the muzzle device retainer/plunger.
Confusing you and myself on the earlier post.
It appears to be a mixed parts build. You can see the old component pin channel(s) in the front of the barrel.
Barrel was turned down for some reason. Possibly a ban era Romanian barrel?