Bulg Bayo wont fit Bulg FSB???

I have a bulgarian FSB with brake and the bulgarian bayonet seems to be a quarter of an inch or so from locking in on the lug. Anyone have any ideas? Did they produce diff length bayonets? Can I remove the locking part on the end of the bayonet and remove some of that locking part so it can fit?

That base is likely the early style.
Need either the early type bayo or the new type fsb (the better option)

Does that spring loaded button at the bottum of the bayonet come apart? Or how will I know the difference between the early type bayonet? what other bayonets would work?

Stamped or milled receiver? AK47 or AK74? Which brake? How about some details.

Stamped or milled receiver? AK47 or AK74? Which brake? How about some details.
Take it to the gunshow and see what fits.
That way you can also ensure it fits over the flashhider

its a stamped receiver, its a 223 siaga but It has a bulgarian fsb and brake and i buaght a bulgarian bayonet and it too long by like 1/4 and inch from locking in on the lug. what gives