Done a few mods.
Crosman Steel breech
PAO 2X20 scope
2240 silencer adaptor, shaved in the milling machine so it clears the pump tube - the barrel is free floating now.
Stainless pump pivot.
Aluminium extended pump handle - these pistols are so hard to pump using the standard pump handle when a scope is fitted.
Aluminium shoulder stock adaptor - in the photo there is a stabiliser / counterweight fitted, this counters the forward heavy feeling when the silencer is attached. I've also made a rod stock that fits in instead, it has an unusually long reach but it allows me to use the pistol scope in rifle mode, I'm quite tall so it feels fine for me.
PLA+ 3D printed target grip with adjustable palm shelf.

Full power valve mod, now running 5.7 ftlbs with JSB 8.44gn
Pellet on pellet at 15yds with the shoulder stock fitted.

https://flic.kr/p/2niVBC1