Kind of odd that it doesn't come with covers, considering the price. I mean, even the Revic scopes come with covers (which are Tenebrex made, with the Revic logo).
ZCO wanted to come in at a competitive price point since they are new to the market when they actually produce a scope that is overall a value well above its price point. Many competitive shooters take their caps and throw them back in a box so it's an optional accessory. Right now people are buying a ~$4,000 scope at a $400-$500 discount, I say that makes up for the caps IMO.