Although the title of this piece states that it is for the M4A3 Sherman, the M3 gun was used on all 75mm-armed Shermans, so this barrel can be used on any 75mm Sherman kit. I have compared its measurements to those in the Hunnicutt Sherman book, and it measures about one millimeter short, which isn't too bad, but it should be better. Perhaps the difference can be fixed at the base where it connects to the mantlet. It also has a nice flare at the tip which is barely noticeable, as it should be.

Thank you very much to Rafal Niedzielski for the providing the review item.