Shop › AR Repair/Service O-Ring Kit Image 1 of 1 AR Repair/Service O-Ring Kit $15.00 Add To Cart Added! COD.2190 COD.2190 You Might Also Like AR Support Rings $6.00 AR Repair/Service Piston kit $137.50 Bertolini Minor Seal Kit 283 $275.00 Bertolini Major Seal Kit 96 $416.90 Bertolini Valve Kit 148 $207.90