this is an authentic "Colt" brand upper. I"Cold Steel" is a listing error as this is a "Colt" manufactured upper assembly through and through. *****Note*****: These Colt uppers have been factory assembled, test fired and packaged. As such, there may be some slight powder residue.

this is an authentic "Colt" brand upper. I"Cold Steel" is a listing error as this is a "Colt" manufactured upper assembly through and through. *****Note*****: These Colt uppers have been factory assembled, test fired and packaged. As such, there may be some slight powder residue.

Hello Davidson, I hope you got it figured out. if this is the upper you are referring to, yes it is all Colt. Hope that helps! budsgunshop.com/catalog/product_info.php/products_id/714004592/COLT+M4+UPPER+5.56+16+MATECH+SGHT />

Hi Davidson, this is an authentic "Colt" brand upper. I"Cold Steel" is a listing error as this is a "Colt" manufactured upper assembly through and through. *****Note*****: These Colt uppers have been factory assembled, test fired and packaged. As such, there may be some slight powder residue.