I have the 16" 7.62X39 model. I like it a lot. It NEVER jams. It has its own magazines, and if you want to use a regular AK mag, you have to modify it to fit.
Its a very good durable dependable rifle.
I also got a Saiga scope mount from CDNN for mine, DO NOT GET ONE!! It uses the side mount that is attached to the reciever, and even when I spend a lot of time fitting it on, it pops off with recoil after 5 or 6 shots. I might drill and tap some hole in mine so I can actually screw it on, but I might just throw it out too.
the rifle doesnt really need a scope. I get 2 to 3 inch groups with iron sights at 100 yards with Wolf ammo.