Interesting thread.

Does anyone out there know what % of Arrieta's annual gun production the 557, 570, and 578 has occupied? It couldn't have been all that small.

According to AyA, as of 2011, AyA was producing approx. 350 guns per year of which 95% were versions of the No. 4 boxock, and No. 2 side lock. So if you do the math they weren't producing that many higher end guns, maybe 20-30 a year.

How many guns per year was Arrizabalaga producung as of late?

I don't know, the reality of AyA'S numbers doesn't seem to reflect a market for producing only higher end guns. I guess only time will tell if Arrieta survives.