Aquired a Rem. 700 in 6mm with a SPI scope. Found out it is from Seirra Pacific Innovations, which does night vision optics. I know nothing else and can find no info on this rifle scope. It is a fixed 4x32mm model 564 made in Japan. Lettering also states, "Fully coated, nitrogen filled, centra-set reticle". Anybody know anything about this scope?