Modularity is part of the concept in the idea to provide you an all-around gun.
But for the price of an additional barrel you could buy a remington 700 or a winchester 70.
Plus if the concept is good for moving targets the rifle is not easy to use while hunting from high stan, stalking with shooting sticks or shooting from prone position (then the reloading routine is a problem) and the calibers offer is not wide enough to cover african needs.
