2260 with short crosman receiver atop a mini riser made from aluminum tube. Barrel is a 2200 soda straw
tensioned inside a titanium golf club shaft. Three screw mod to the trigger, bulk co2, SSP 250 rear cocking
striker assembly. Factory stock, reshaped, bedliner finish and stick on cheek piece. The idea was a weather
resistant light hunter for rainy days.
I've got a Cothran stainless receiver and gas tube waiting for me to get back to this one.
"don't really have anything holding the valve from forward movement except for the transfer port bucking"
Forgetting about the pump arm pivot? Most of the striker energy goes into cracking the valve.
And prior to cracking the forwards movement is resisted by the pump linkage.
The reaction force on the pivot pin in idle state is the pressure on the front side of the
check valve multiplied by piston area. This is the force the striker must overcome
to even start the valve body moving forwards.
Extra securing never hurts unless it's positioned badly. If the holes are aligned
so that the screw takes all the piston's force before the rear lip does, then you
could end up with a damaged screw that's hard to remove.
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