I was lucky enough to recently obtain three Colt Defense stripped factory AR lowers that can legally be made into pistols. These are the same lowers Colt uses in all their military and law enforcement rifles. I purchased two Colt 6945 10.5 inch monolithic uppers, and one Colt 6943 11.5 inch monolithic upper. They all have the Colt factory BCG's and I have a full sets of Colt factory lower receiver parts to install. So with the exception of the SB Tactical SB3a arm braces I'm installing, they will be made entirely from factory Colt components. I should have photos Wednesday or Thursday.