They are availible in Japan for $80.00, but would cost $20.00 to ship here... My borther in law lives in Tokyo and can used ones there.
I emailed the author's asscociate and here is his response:
Dear John
I am Satoshi Maoka, a friend of Mr. Masami Tokoi,
I am very happy to hear that you have interested in Tokoi Book.
His Karashnikov book had already out of print in Japan,
Mr Tokoi said to me that the book have a lot of mistake, because he
wrote the book at the cold war.
He has got a lot of new information about Karashnikov rifles from
Rossia
and Eastern Europe.
But I don¡Çt know whether he has a plan to write new Karashnikov
rifles.
I am sorry I can not help you.
Mr. Masami Tokoi is in Europe now, he will back to Japan soon.
I have a schedule to have Tokoi¡Çs Seminar about U.S. Military weapons
at
July in Tokyo
Thank you.
Satoshi Matsuo