Includes the following parts:
• air valve seal (0277486)
• rear air valve seal (0275501)
• needle packing (0275579)
• check valve retainer assembly (0529220)
• gun body o-ring (0524618)
• air flow valve o-ring (0508403)
• check valve seal (0276415)
• cup gasket (0277495)
• gun head seal (0524503)
