If you are familiar with the sport of paintball or you are a beginner, you are going to always find it difficult to select the right length of barrel for your paintball gun. The length of the paintball barrels matters and will dictate how far paintballs travel from standing still to flying up to speeds of 300 fps. The first 8 to 10 inches of a barrel are the most important, and some people think that by adding another 4 inches on the barrel may be helpful in obtaining more accuracy and range. For anything over 8 inches, the pressure in the paintball gun barrel drops and any additional length just causes friction. If you purchase a barrel that is shorter than 8 inches like a pistol, it may have less range and accuracy than regular paintball guns. You are also going to need extra gas if you purchase of a paintball gun barrels that is longer than 14 inches. The ideal length of the barrel for the paintball gun is 8 to 14 inches base on the experts. If you are competing in warmer weather, the gas from the tank will expand faster so a shorter barrel is fine. But in cold weather, the opposite happens as the gas will need more time to expand, so a longer barrel is better. It is important to know that the longer barrel will not increase your range of accuracy but is has few advantages. They will enable you to shoot around bunkers or peek through bushes easier without being exposed.