a good ak that is milled, not stamped will run you some $$. a frend of mine had a polytek that was smooth as silk. the polytek, sks para-trooper, and mini 30 shot side by side resulted in:
polytek = great shooter, never jammed, fast as hell, least kick.
sks = not bad but tempermental with ammo and a real flame thrower.
mini 30 = loud as hell, at up ammo once the right clip was aquired, the biggest kick.