Get a SIG 556R if you want a real rifle in the 7.62 X 39 flavor.
I had an Arsenal SAM-7 which was an excellent AK but it was still an AK ( crappy trigger, crude sights and short radius, so-so accuracy , and crappy ergonomics if you are taller than 5' ). I sold it and picked up a SIG 556R.
IF you get a Sig make sure you get a current production gun or a 2nd generation rifle because the initial rifle had multiple issues. I had an original 1st generation gun that went back to Sig three different times and they ended up replacing it with a new production rifle.
The SIG had MUCH better ergonomics for an adult, folding stock, better sight option ( whatever you want ), trigger and is WAY more accurate than any AK I have fired or owned. There is a new 556 XI that is modular if you want or need those option but the 556R suits me fine. I have a 556 SWAT in .223 and the 556R in the same configuration.