I have a Maadi imported by Century Arms that has never worked well and has spent most of the last 15 years in it's case.
I have unknown maker military surplus magazines. The ammo is Russian made hollow point. I bought the ammo with the gun for $140 for 1000 rounds (that was expensive at the time).
I did fix the trigger slap by installing a Tapco trigger which is nice.
The gun jams every 5-8 shots with the hollow point stuck on the bottom of what is best described as a feed ramp. The AK doesn't seem to have much of a feed ramp. It does not matter which magazine I use. I ground the feed ramp a bit but I shouldn't need to. I also have not tried FMJ ammo but, once again, i shouldn't need to.
When the gun jams, pulling back and releasing the bolt always chambers the stuck round.
Anyone have ideas? I hope it isn't the ammo because I still have 800 rounds left!