Hey guy's, Replaced my Barrel today on my Colt M4 6400c. Decided to keep the OEM Barrel (never know ? ) and get a DPMS replacement Barrel 16" M4 style 1/9 twist and chambered for 5.56 ,looks like a pretty decient Barrel..
It's even undercut under the handguards,has the bayo lug and I also put on an A2 Flash Hider ..
also found a Colt (late style) Tele Stock 4 Pos. ACOG TAO1 and Forward Grip... It's looking good........http://img9.exs.cx/img9/3297/ColtM4No-ban2LargeMedium.jpg

OMG, OMG, can't breathe, can't breathe.................................

Where's markm, where's dpmmn, where's Bradd_D, where's the rest of the Colt gang.  This man has committed sacrilege on this poor Colt rifle.
I'm just joking, as your rifle looks great.  Just have to take every chance I get to poke fun at the Colt elitists.

Looks good to me.

Awesome!