Just ordered my m16a1 parts kit from jgsales.com. Was looking around for a bit and found already complete rifles made out of the same parts but wanted to build my own retro. Plus all of them I found had century lowers and I didn't really want to use century on my first ar rifle, its fine on my ak74 though. I will be using nodakspud 16a1 lower on my built. And probably will pick up an original bayonet for it a little later. One more reason I decided to go with that kit is that it comes with all full auto parts. They are going in to garbage right away, but just a fact that I had them in my hands will make a little happy. I was wondering if you guys have dealt with builts like that before and what advice would you have for me? Thanks!