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The New Year means its time for new gun pics.
Got something cool?
Something Classic?
Something werid?
Send it and we’ll use it up top
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You bet! Very creative THAT is!

June 13 2017 at 11:16 AM
Phil  (Login Duane35)
Crosman Forum Member
from IP address

Response to As I'm sure you know, I'm only kidding. Actually I'm a big fan of O-ring checkvalves...

In this design, the o'ring serves as the piston seal and the check seal; two way seal.

Pulling piston out forces ring against the piston face exposing the hole, which allows air in. Closing the piston forces the seal against a seat.

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