Colt LE6921 14.5" M4 Upper Conversion Kit. Comes complete with BCG, Charging Handle, Magpul MBUS, M4 Handguards, Front Sight Sling Mount, Muzzle Dust Cover, Manual and Box.
Thit is an NFA upper and will have to be pinned with a 1.5" FH or MB in order to make it 16" OAL.
