04 Carb switch

I have a 04 Polaris ATP with a 500 HO engine. I want to put a new carb on it. What is the difference between a regular Sportsman 500HO carb and a ATP 500HO Carb. They look the same to me. I can’t seem to find a listing where it lists the ATP and the sportsman carbs will interchange. Can I make this happen.? What’s the difference?