When the Tippmann A5 paintball gun was introduced, it quickly became the paintball marker of choice for hardcore mil-sim and scenario paintball players. Realism. Customization. Durability. The Tippmann A5 paintball marker has it all. And we have them all, including tons of Tippmann A5 Upgrades. Tippmann A5 paintball guns are one of the most popular in the entire world.