I am looking to purchase new authentic factory Colt M203 quadrant sight. This is the sight that is mounted to the detachable carry handle of the M16-M4 family of weapons. I ABSOLUTELY NEED A FACTORY COLT!! I might consider an LMT unit, but would really prefer Colt. Please email me DIRECTLY: firstname.lastname@example.org or call 214.228.8762 with info.