Senco Finish Nailer SFN2 O ring Kit + LB5005 + BB0147 Bumper + Feeder Spring Kit
Includes all the O-rings in the tool, and the plastic washer firing valve seal LB5005 and the piston stop BB0147 and Feeder Spring YK0032. You are buying the o-ring kit, LB5005 seal, and BB0147 bumper + Feeder Spring.