Wound up with that upper and it's chrome bore barrel in the future. I think It is an A1E1 from some nomenclature I saw but unsure as I've never ever seen An additional a person. I figured this was made round the time of merchandise improvement into the M16A2 ?. https://legit-directory.com/listings13074800/the-smart-trick-of-colt-combat-elite-commander-45-acp-that-nobody-is-discussing