Puncher breaker fill probe

I have the kral PB in .25 from annihilator airguns it’s an awesome gun, But. Does anyone know where I can get/find a better fill probe? I’ve tried different rings as well as slightly thicker rings but every now and then still piss’s lil air only while filling I know many with this gun have same thing going on it isn’t a biggie but I wish it wouldn’t Just askin for some input Thanks. Vinny