Good firearms didn't cease to be manufactured in 1964 !
You just caused a few SCD's.
WEll......., it wasn't my intention but I RECALL (as remember) the early Post 64s. I actually had one in 243 Win. It shot very well. It had the -early white line spacer & black forend tip.
Reading the 'gun rags' (being PC) youada (grin) thot I had a TURD. The mags made me FEEL I had a second rate rifle so I moved it. B A D mistake! ! !