Abstract: A paintball marker adapter kit that enables a paintball marker with a .68 caliber barrel to use .50 caliber paintballs. In one embodiment, the kit includes a hollow barrel tube, a replacement power tube, a replacement linkage arm, and optional feed ball adapters that into the marker's existing ammo feed hopper or a replacement ammo feed hopper. The barrel tube includes a rear bolt section that extends longitudinally from the proximal end of the barrel. The marker's existing front bolt, power tube and linkage arm are removed and replaced by the replacement power tube and replacement linkage arm. The barrel tube is hollow with a center bore configured to receive a .50 caliber paintball and receive the front air tube on the power tube. The barrel tube also includes a ball hole configured for a .50 caliber paintball that drops vertically from the ammo feed elbow and a blocking pin and latch hole. The kit may include a velocity limiting device that fits into the power tube.

Abstract: A paintball marker adapter kit that enables a paintball marker with a .68 caliber barrel to use .50 caliber paintballs. In one embodiment, the kit includes a hollow barrel tube, a replacement power tube, a replacement linkage arm, and optional feed ball adapters that into the marker's existing ammo feed hopper or a replacement ammo feed hopper. The barrel tube includes a rear bolt section that extends longitudinally from the proximal end of the barrel. The marker's existing front bolt, power tube and linkage arm are removed and replaced by the replacement power tube and replacement linkage arm. The barrel tube is hollow with a center bore configured to receive a .50 caliber paintball and receive the front air tube on the power tube. The barrel tube also includes a ball hole configured for a .50 caliber paintball that drops vertically from the ammo feed elbow and a blocking pin and latch hole. The kit may include a velocity limiting device that fits into the power tube.