Bigbill, in a pinch a blackpowder nipple wrench will work on SKS/AK front sights elevation.
I had a Norinco several years back, and sold it much to my regret. Got a Romy AK, but it just ain't the same.
Got a Yugo M59/66 several months ago, and I love it. With a scope and a steel bipod (this thing's heavy!) I call it my "Poorman's M1A". :lol:
Finally got another Norinco, and have shot it enough to be pleased with it. I plan to really wring it out this weekend. It seems to like the cheap Wolf stuff, that my Yugo doesn't like. The Yugo likes the pricier UMC commercial ammo.