Thanks guys. I bought the Colt LE6920 M4 Carbine today @ Wal-Mart on Brown's Mill Rd. in Johnson City, TN. They have a couple of LE6920 SOCOM for $1,479 and 1 or 2 others. Looks like a quad rail and different folding rear sight on the SOCOM are the only differences from the one I got.
Now I need to do some reading and see what I want to do to it. No present plans. I will just store it in my gun safe in my office file storage room in the bank building for now. Good place to store stuff! I will probably take it to the country or a range just to see how it shoots some day. The grandsons (ages 4 & 6) will inherit it some day. The buttstock is a Rogers Super-stoc.
http://www.holsterops.com/rogers-super-stoc
Look at Rogers' tri-rail and vertical grip bi-pod
http://www.holsterops.com/rogers-tri-rail
http://www.holsterops.com/gps-02