Re: MR4 questions and opinions on barrel and scope
unlike with firearms with paintball, longer barrel doesnt mean more accuracy. honestly I wouldnt go past 16 inches. if you want really good accuracy, you will need to use quality paintballs along with a good paint to barrel bore match. apex barrels are cool though for making hook and trick shots. rifled barrels for paintball guns are pointless, they dont add accuracy or distance to the shot.
dont spend a lot of money on a scope because paintball guns are extremely inaccurate in comparison to firearms. if you really want to get a scope id go with a red dot since you have a lot more viewing area.