Challenger Plainsman .22 Pneumatic Rifle

[Renfield]

Any suggestions or ideas for a suitable pump cup replacement?

I’ve tried 2 different styles of crosman 101 pump cups & they are but a fraction too small in diameter.

The original pump cup was longer as well as wider too.

I unfortunately don’t have a photograph or dimensions of the original pump cup either...

[Rob112o]

Did you have any luck? They aren't cups like a Dan and Benji 392. They are more along the line of early Benji 312's. Not sure of the sizes off hand. I'll go measure tomorrow.

[Renfield]

Yep, I was able to smooth down a 342 pump cup.
It worked nicely.

I used that later solid piece style- like on the Sheridans.
Just had to punch a hole out in the center.