I know it's been a while. I haven't left it on the back burner, believe me. Today, I picked up an M16 bolt carrier group and assembled it. I thought I had found an AR BCG, but when I got there, the guy said all he had were M16 carriers, so for only $20 more, I went for it. Below is a picture of the current state of the build. As you can see and I blogged about a while ago, the lower is completed.
And that's an EOTech 556 holographic sight in the upper right hand corner.
Trust me, putting the bolt together is a pretty easy task. If you have one of these.