Wound up with that upper and It can be chrome bore barrel in the future. I believe It can be an A1E1 from some nomenclature I noticed but not sure as I have never ever found another a person. I figured this was designed round the time of product or https://coltcombatelitecommander411222.thecomputerwiki.com/5210794/the_smart_trick_of_colt_combat_elite_commander_45_acp_that_nobody_is_discussing