I just picked up this rifle from a good friend of mine. According to the serial # it's a 1975 SP 1, shoots very well and I'm very pleased with it.
https://www.milsurps.com/images/impo...gsyudend-1.jpg
https://www.milsurps.com/images/impo...cjmmdhjf-1.jpg
https://www.milsurps.com/images/impo...ox6wbb7z-1.jpg
https://www.milsurps.com/images/impo...fgxlsbbz-1.jpg