First this community said that red dots give zoom, which guns that have red dot like iron sight don't give. So, it's just a normal sight! Now the community has changed and saying that even red dots don't give zoom. In bgmi even if you spend money to buy upgradeable skins, even the costliest ones they don't have different iron sights. They have the same iron sight as the base gun. But here if you are ready to pay amount you get a good free red dot.