 Another characteristic of the Phantom that varies within the Nelson-based family of markers is that it features the original "breech drop" design as opposed to the "bore drop" variation of the design, meaning that the paintballs drop into breech, or rear of the barrel, rather than dropping into the bore of the barrel.Different breech layouts allow players to use larger hoppers that are more common among contemporary semi-automatic markers or horizontal feed tubes.There are two styles available for the Phantom; "gravity feed" and "stock class".