No, the trigger group is not the controlled component of an AR-15. But to answer QuinnBrian as well, here is a thread by a fellow detailing his struggles to drop an AR-15 trigger into an SKS trigger group. I'm not convinced that's the best solution.
http://www.canadiangunnutz.com/forum/showthread.php/1220648-Custom-SKS-AK-influences
I like wood and metal. The plastic sucks. I have a sub 2000 and it is neat but sucks with the plastic. My vote is for a metal stock or wood.
I've never bothered modding my SKS... but this I would do if (when) available.
Yep that's what I wanted to do....looks like it's been done. Should make your sks, more trigger friendly. Easier to aim. With out all/most of the SKS grit.
Looks great, I'd love to see how it ended up, sorry if I missed it in the video