Since the CRPF question has been answered, here's my take on M70 history: while the overall quality of the M70MIGHT have went down for a while in 1964. I think that too big a deal was made over going from the claw to the push feeds!
For one thing, the push feeds work great! There is no real need for a claw extractor, except where dangerous game is envolved!
Secondly, the Remington NEVER had a claw, so what was so big of a deal when Winchester dropped theirs!!!!