Keep your classic Autococker paintball marker shooting smooth with this general-purpose O-ring rebuild kit! It's from Orings-Online and contains all the essential O-rings you need to reseal and maintain your marker. The description says it's enough for 4 complete rebuilds, so you'll have plenty of spares. If your 'Cocker is leaking air, has velocity issues, or just needs some TLC after years of use, replacing the O-rings is often the first and most important step. This kit likely includes the various sizes needed for the bolt, ram, pneumatics, and valve. Brand new in its packaging. A must-have for any Autococker owner, whether you're a weekend warrior or a tournament player. Don't let worn-out seals ruin your day on the field. Performing regular maintenance with fresh O-rings ensures your marker is reliable, efficient, and accurate. Even if you're not having problems now, having this kit in your gear bag is smart preparedness. Bring that old-school Autococker back to life or keep your prized marker in peak condition. Essential maintenance for a timeless paintball gun.