Details: Sometimes your barrel is to large or small for a paintball to fit through, and leads to poor accuracy or barrel breaks. With the Planet Eclipse Shaft4 Barrel Back .689 you are able to shoot .689 caliber paint flawlessly. Stop breaking paint in your barrel, and start breaking it on the opponent with the Shaft4 Barrel Back .689. Please note, you require a compatible Shaft4 barrel tip to be used on your marker. This is a paintball barrel back.
