SSPKali

So if you have a TM MWS and you need to drop the FPS (maybe after a longer barrel or other changes that can tip it over the limit) try this one crazy trick!

Take out the plastic rocket valve and LIGHTLY rough up the flat back part, cover in thin layer of superglue and dip the end in baking powder. Dust off and repeat.

Clean up the edges to it moves freely in the nozzle and re-assemble.

Mine went from 290+ fps down to 240fps (0.32g) in 18DegC on ASG beige gas! Less than a mm of extra length makes all the difference! (Ooh err Matron!)

YMMV, messing about with internals like this might break things, get an adult to help, I am not liable for anything, ever.