I was wondering about this L61R Finnbear full-stock carbine. From the serial number, I believe it was made in 1972. I also read somewhere that the Finnbear full-stock carbine was made only in 1972. But then there are obviously the later versions of the AIII "Mannlicher" carbine, ...beginning when? Does someone know the manufacturing dates re: the earlier Finnbear carbine vs. the later AIII version (the ones with the somewhat unfortunate Williams sights)?