I used to have a Norinco MAK-90 years ago. I wish I still had it. The trigger was great and it was pretty tight. It was decently accurate but not a nail driver. I used it a lot for hog hunting in the thick brush and had a lot of fun with it. Not sure what everyone else's experience is with those. Man, I wish I still had it, lots of fun. Here's my 2 cents...
I eventually put a ProPoint on it. Originally mounted to a cover with a rail; those change zero every time to you remove them and put them back on. Since I habitually clean my weapons every time I shoot and had to remove it this got annoying fast. Make sure to mount it somewhere more permanent (e.g. receiver).
Drums, I had a 75 rounder. Pretty cool the first time, but ridiculously heavy when loaded up. I walk hunted a lot and it was much easier to have extra mags close to the body in a pocket to distribute the weight.
Other than that all stock. Wood furniture with thumbhole stock. May have experimented with synthetic furniture to cut down the weight.
Oh, yeah. Plastic furniture definitely cuts the weight.
Best way to mount a red dot sight is the Ultimak, in my opinion. AK-47 Accessories, AK-47 Mini-14, Mini-30, M1 .30 Carbine Scout Scope Mount from UltiMAK I've got one, love mine. If you use a bigger sight like an Aimpoint Comp M2 (like I do), it will make the rifle a little front-heavy. Otherwise, the rail itself doesn't do a lot to affect the balance of the rifle.