Originally Posted by Neil_N
The only deviation with paintball is its hard as hell to make a 68 cal marker look realistic due to the amount of air required to cycle and shoot them, the space required to store the paintballs and that the barrel opening is like a howitzer comparatively.
Hop up for airsoft: Approximately 3cm
Hop up for paintball: Approximately 13inches
Airsoft will always in hands down in terms of mil-sim, unless you can create a 1-1 scale 68 cal machine gun (or bore out a 50 cal)... which would be pretty sweet come to think of it.