Colt LE6945CK Upper Receiver Conversion Kit 5.56 10.3" - LE6945CK

This Colt upper receiver conversion kit is chambered in 5.56 NATO and features a 10.3" barrel, designed for AR-15 platform rifles. The conversion kit allows users to reconfigure their existing AR-15 lower receiver to fire in this caliber and barrel length configuration. Installation requires removal of the existing upper receiver and installation of this complete upper assembly onto a compatible AR-15 lower receiver.