I called Colt to inquire about an Archives search for the gun. Luckily, I got the best Colt rep that I've ever spoken with. He said "how about I save you the trouble and look it up?". Sweet!
Anyway when I gave him the serial number this is what he found:
The "Dissipator" is a Colt Model AR6536 (can't even find that on a Google search).
2003 mfg, 16.1" H BAR, ,1:9, chrome lined, A2 Upper, Fixed buttstock, A2 front and rear sights, rifle handguards, bayo lug, muzzle break.
He could not tell me how many were produced.
So, that's the scoop. Now I have to find a factory A2 stock with the metal trap door and a front sling swivel to restore it.
Will have to update the Wiki page with this model.