Cycloneshock plunger tube head replacement

Replacement for Cycloneshock plunger tube head/cap, with reduced dead space vs original.

I removed the original orange head using pliers, as it is solvent welded on, so I felt there was no good way to remove it entirely without damaging it.

Because the solvent welding leaves residual plastic stuck to the outer rim of the plunger tube, I've designed this replacement to seat inside the plunger tube.

Seal this head/cap using hotglue or similar to prevent air leakage.