I have kits for these below. I also have kits for these on eBay SN1 Seal and O-ring rebuild kits SN1 O-ring Kit + LB5004 SN1 O-ring Kit Seal LB5004Available Qty: 6LB5004Aftermarket Seal Part LB5004Available Qty: 15 Post navigation Senco Stapler M1 M2 SC1 Rebuild Kit includes O-ring Kit + LB5005 + BB0147 Senco SN1 SNI Parts Seal LB5004