Originally Posted by
cqbdriver
I got a MT6400c during the ban days. When the ban died, I replaced the fixed stock with a Vltor & I sent the upper to ADCO to have barrel threaded so I could add a Flash Suppressor & get rid of that muzzle brake. I have a Bushmaster & never had any problems with it, but the Colt is my favorite. My MT6400C has a chrome-lined chamber & bore and it has 5.56mm chamber, not .223, 1/7 twist
Why can't you get a LE6920? My friend got one couple weeks ago. I would get a LE6920 if I had the choice.