No phantom ,just the s16!
correction mate S16s
and asi said to u mate i have some seals here that shouldnt be a problem as iv had quite a few s16 and usually u can just replace them with normal ones i know exactly what one u r talking about as stated the rifle was mine to start with and never had that 1 seal replaced.
p.s. just thought it wasnt leaking out of the litte hole on side of female mount was it if it has a sticky valve again and needs cleaning again!
p.s. if u need me give me a bell or need me to take a look at it or strip n service it give me a bell mate
als