Two (2) Aftermarket washer firing valve seals LB5005 (These are 3D Printed Parts)

   For Make: Senco
   For Model:  M1, M2+ M-Series, M3+ M-Series,
                      MW Wide-Crown, SC1 Senclamp, 
                      SC2 Corrugated Fastening Tool. 
                      SFN2 Finish Nailer
   Part #: LB5005
Only the plastic seals are included
No other parts or nailer included, nailers pictured are for tool reference only

NOTE: These are a more flexible plastic than the ones sold by Senco, much easier to install