Ram Tactical | Foster Coupling Valve

Hatsan Quick-Connect Fill Nipple – Foster male coupling for PCP airguns

This fill nipple provides a direct connection between PCP airguns and filling sources through a standard male Foster coupling. The brass construction includes O-ring seals for airtight operation up to 300 bar working pressure.

Construction and materials

The coupling features a brass body with integrated high-quality O-ring seals. The silver finish provides corrosion resistance. The self-sealing Foster mechanism prevents air loss during connection and disconnection, maintaining system pressure throughout the filling process.

Application and use

Designed for Hatsan PCP airguns, this coupling installs directly onto the rifle's fill port. Once mounted, it enables tool-free switching between different fill sources including hand pumps, scuba tank adapters, and direct compressor connections. The audible click confirms secure attachment.

Integration and compatibility

The male Foster connector is compatible with all female Foster fittings found on standard PCP filling equipment. This universal fitting type ensures compatibility with most hand pumps, fill whips, and compressor hoses used in the PCP airgun industry.

Maintenance and lifecycle

The O-ring seals require periodic inspection for wear or damage. Replace seals when compression loss occurs or visible degradation appears. The brass construction provides long service life under normal use conditions.