This is a 100% Colt 9mm barrel assembly. Colt XM177 handguards, Colt 10.5 inch thin profile barrel, Delta ring and all parts are Colt. Rifling is very strong, nothing wrong with this assembly.
LRM is going to build my upper with one of their suppressors and they like RRA barrels better for doing this apparently.
Trade it for a RRA 9mm barrel of any length as long as it's at least 7 inches long and in very good condition.