Any rifle can benefit from good optics - magnified or otherwise. AK optics and mount options are far superior today than they were just 5-6 years ago.
I have been running "modernized" AKs for over a decade now. I love the gun and have some 7 variants, each having a distinct feature set.
Yes, I do think that the AK is first and foremost a battle carbine - assualt rifle - pick your wording for what is basically a 300 meter and below weapon. It can go beyond that - and is accurate to a degree. It is not sub-MOA, it is not a sniper rifle and probably not a good pick for DMR.
If you want to put holes into holes, don't grab an AK, but deer hunting doesn't require that.
But some AK types are quite accurate and some Optics are very much capable of being mounted ergonomically and increase the capabilities of the AK in ways that those who have not been shooting them and studying them much in the last 10+ years have experienced.
Here is a cool video (AKOU's Robski behind a VEPR @ 500yds
https://www.youtube.com/watch?v=aa2P83BbIOc
Here are some relatively inexpensive products to research:
Midwest Sidemount (RS-Regulate is better, Arsenal's is longer - but this is cheaper and solid)
http://www.midwestindustriesinc.com/MI-AK-Side-Railed-Scope-Mount-p/mi-aksm.htm
3x power ACSS reticle and a great optic - its in the video I posted above
http://www.primaryarms.com/primary-...edium=gunconstruction&utm_campaign=pa-product
1-6x variable Power with ACSS. These are longer and bulky, but like a reddot in close - out to 6 power
http://www.primaryarms.com/primary-...300blk-7-62x39-reticle-pa1-6x24sfp-acss-300bo
What is cool about the AK over most other rifles is that it is surprisingly versatile. Most variants have QD side mounts - that means you can have a couple different optics packages kitted and switch between them quickly. Likewise, the muzzle devices are QD - just unscrew your jetbrake for long range and stick on a 4-peice 99% flash hider in seconds.
The lessons I have learned:
1. except for the more expensive and well built options, the dust cover mounts are terribad - stay away at all cost. Even the more expensive and well made ones are really unnecessary.
2. Dot sights can be accurate at longer ranges. 2MOA dots @ 2-300yds is not that hard - probably not something you want to hunt with, but have much better applications too

- plenty of guys reaching out farther without magnified optics or even red dots.
3. Just like the world of ARs, AKs have many innovative accessories and they have thier place. Check out the interwebs for what shooters are doing.
4. Get good AKs. Research before you buy. WASRs are not crap. Yugos are OK. American made AKs generally are not good investments (some new developments here, but not tried and true yet). AKs from Combloc countries are the best right now.
5. DO NOT BUY I.O.
Anyways - lots more info out there than I know.
Don;t hesitate to throw a magnified optic on your AK - cost like $4-500 to do it right and that isn't an arm/ leg of money.