Colt M4 LE6943 UPPER GROUP 11.5IN WITH BCG AND SIGHTS LE6943CK

The LE6940 and LE6945 Upper Receiver Groups offer and upgrade over the traditional M4 setup.  The LE6940 features Colt’s monolithic upper receiver, which provides a one piece Picatinny top rail and rigid mounting surfaces all around, in addition to a completely free floated barrel.  Built-in flip-up front sight is compatible with most standard height rear sights.  Available with 16” or 10.3” chrome lined, 1-7 twist, button rifled barrel.  Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply.