CR-2-55, AIR VALVE RING Posted on January 8, 2019 Andy Zheng Login to see prices AIR VALVE RING SKU: CR-2-55 Category: CR-2 Rivet Tool Parts Description Description AIR VALVE RING Related products CR-2-72 O RING FOR CR-2 Login to see prices CR-2-65, Silencer Login to see prices CR-2-60, connecting base Login to see prices CR-2-56, O-RING Login to see prices