The Colt LE6920 DLAWTRI was displayed at the 2013 SHOT SHOW but never went into production. These images are from screen shots of YouTube visitors at the Colt booth.
LE6920 DLAWTRI
The Colt AR-15 Resource
"A site dedicated to the history of the Colt AR-15 rifles, carbines and associated items"
The Colt AR-15 Resource 