This re-seal kit for the Benjamin Discovery contains:

Breech Seal (#130-036)
Breech Screw (#1322B027)
Valve case o-ring (#130-035)
Valve outer o-ring (2 units) (1761-005)
Valve Stem o-ring (#CAK-008)
Gauge port o-ring (2 units) (#1761-005)
Fill Adapter Pin Valve o-ring
Fill Adapter Outer o-ring (2 units) (#1761-005)
Bolt o-ring (see Note below)

Note: Please specify of you have a .177 or .22 caliber rifle.