Quote Originally Posted by AC99 View Post
The .177 Club has a 2.4" piston stroke and the .22 Airsporter's stroke is 2.8" so piston unit/latch-rod dimensions may also differ between the two models.
Thank you for this information, I appreciate it. I will have to keep my eyes open for a replacement piston and or latch rod for this rifle then. Rare as hen's teeth im guessing.

I will also try the body filler method to get an impression of the end of the compression chamber. That, and any measurements people can give me should be enough to fabricate a replacement.

I hope.