I would like the50 mm Objective lens. But the Mil Dot is the best way to go. Also the side paralex adjustment is well worth the extra cost. Think about it, your on top of a hill and here come three cayotes. When they come in getting as close as they will come, and you shoot one at fifty yards. The rest run then stop out at three hundred yards. Now you have to change the paralex setting. Do you want to move the gun, or your head to make the adjustment on the front of the scope and spook the yotes? With the side adjustment you can make this adjustment with out spooking them, or giving. away your position.