This is the pic of the Colt model AR15A4MP-FDE it have a 20" government (thin under the handguards) profile barrel, flattop upper receiver, Magpul FDE MOE rifle handguard, MOE grip, fixed buttstock, and a MBUS2 folding rear sight.
Colt also have another military M16A4 clone version of this which is model AR15A4 with military black furniture, I've seen two configurations depending on the distributor, there is a detachable carry handle and also a Magpul folding rear sight.
Both the model AR15A4MP-FDE and AR15A4 we are guessing should be out by last quarter of this year, if not this year maybe early next year.
Download the Colt 2013 catalog from the Colt commercial site coltsmfg.com and go to page 39 to see the picture and descriptions, the published MSRP of the AR15A4MP-FDE is $1,304, actual street price should be a little less than that.
Ref. Colt 2013 catalog specs:
Caliber: 5.56X45 NATO (.223 Rem)
Barrel length: 20"
Bore: Chromed, 6 Grooves, 1-7 RH Twist
Front Sight: Adjustable Post for Elevation
Rear Sight: Magpul Gen 2 Back-Up Sight
Extended Length: 40" Fixed
Collapsed Length: N/A
Weight: 7.4 lbs
Action: Direct Gas System, Locking Bolt
Finish: Matte Black