Weapon started life as a like new post-ban era Colt Defense M4 carbine model MT6400C. This weapon was chosen to be reconfigured because it is the only one Colt makes(including LEO weapons)that has a lower receiver thats stamped with the desirable rollmark M4 CARBINE. Also there are no LE/Restricted markings anywhere defacing the weapon. First the complete upper/barrel assembly was replaced with a complete new Colt LE6921 M4 upper/barrel assembly. Then the non-collapsing buttstock was replaced with a new current production Colt M4 four position collapsible stock. All parts used were hand picked for fit, finish, features, and desirable markings. This carefull attention to detail has resulted in a truly unique weapon with above average fit and finish. Further details and pics will be available to a serious buyer. I am asking $1695.00 plus shipping to FFL. Please contact me via e-mail.