BM-59 and AR-70 bayonets - Interchangeable?

[DannyinJapan]

Are the bayonets for the BM-59 and the AR-70 interchangeable?
I can't tell the difference between them.

 

[DannyinJapan]

BTT.. Anybody have a clue?

 

[Moonclip]

Ask on the Italian forum at gunboards.com if no one knows here.