Air Arms S310/ S400/410 Fill Valve Upgrade and 6+6kg on sizes L

and 6+6kg on sizes L and XL

in water is probably every diver’s desire

whether double ender or the smallest clip can easily be handled in the thickest dry glove systems

Must have logged at least 5 hours between 27-40m

The main features of the Mission 1 dive pressure gauge are:

Air Arms S310/ S400/410 Fill Valve Upgrade and 6+6kg on sizes LUpgrade your old snap coupler style fitment to the current version of Air Arms filling system. Parts included: Replacement Fill Valve Body with O rings Current style Fill Valve Current style Fill Adaptor New End Cap Not suitable for the S200 We recommend that these items are only fitted by a competent person.