I believe that the Norinco model 4's are a copy of the BRNO rifles not the CZ 452's. While similar, the triggers are different and the quality not quite as good.. I have Norinco KKW -TU training rifle ( K98 Mauser style) It actually shoots quite well. I installed a Russian 3.5 PU scope on mine and was getting 1/4in. groups at 25 yards. In order t get bolt clearance I had to use a DIP (Diversified Innovative Products) 20moa base with a set of tall, 30mm, shimmed rings. There have been several discussions over at Rimfirecentral.com. There is one at a local pawnshop for $129, which I felt was a little high. Pricing of $90 to $100 would be more inline. The wood feels fairly dense and I think the word Balsa does not quite describe the feel and heft of the rifle wood.