It definitely looks the part. I'd say you nailed it. Nice job!
Edit.
Maybe not. Looking closer, the barrels on the piece you posted have some separation to them that the model doesn't show. Hard to say.
Don't forget that the model is a casting. Those little barrels would have been a PITA to get every time. It's possible that the rubber between tore out or that the model makers filled in the gap on the original part to make the casting easier. Nobody was pressure casting back then.