FX Anyone got there FX DRS in yet??

Check out these videos from Sub 12 Airgunners. He explains what is the probable cause of different air leaks.

Ty
But was asking cous dont like long videos. It was valve seal oring as i suspected.. but what a poop rifle to work on.. and bad quality on all parts as fx always.. if want quality buy chinese :D now fighting the valve body back in place,
 
I have 700mm classic, but the barrel is solid. Not heavy superior as mentioned.. why is that ?

IMG-20250906-WA0009.jpeg
 
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Ok,thanks.. ill try to unscrew it in a while.. just looks like solid metal
pay atention if you remove it as there is a front and rear direction to the liner. One side has a circle a short distance from the end its the breech where the pellet enters the barrel. also just (snug) that piece with the screws when re-assembling it.
 
pay atention if you remove it as there is a front and rear direction to the liner. One side has a circle a short distance from the end its the breech where the pellet enters the barrel. also just (snug) that piece with the screws when re-assembling it.
Did not remove it.. strugling with valve leak. Lapped the seat,still leak.
 
I think the puff of air is a Oring in the breech end of the barrel transfer port. two Orings inside the brass part of the barrel. The pellet probe is sealed by those Orings when the gun is fired

Problem was missin the smalla 3.5x1mm o-ring in valve body..
After assembly new problem that air is leaking from barrel, so something with valve or valve body, allready tried lapping valve/valvebody.. need to change all o-rings and test.. or then need a new valvebody/valve rod.
 
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