Published On Jan 6, 2020
Beeman P17/Marksman 2004, complete teardown/rebuild.
O-rings:
#006 1/8"ID X 1/4"OD X 1/16"CS: Valve stem tip
#008 3/16"ID X 5/16"OD X 1/16"CS: Valve plug
#009 7/32"ID X 11/32"OD X 1/16"CS: Breech
2.5mm X 20mm exact metric replacement: Piston
#117 13/16"ID X 1"OD X 3/32"CS: Piston, Tighter fit
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