| Probably the piston seal...July 26 2008 at 11:46 PM | Russ (Login Guru1atl)
YFOT |
Response to Marksman 2004 / Beeman P3 Schematic...not holding air |
| Open the gun like you are going to cock it.
On the end of the piston where it pivots on the upper receiver there is an allen screw, remove this. Once this is done, the pivot pin that attaches the piston to the upper receiver can be removed. Once this is removed the piston can be pulled out of the chamber. You can find replacement o-rings at Home Depot.
Russ S.
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