HK Fossil - Eclipse CS3 - Storm Fill Stations This is the easiest way

This is the easiest way to replace the valve in your gun

the Savant has a similar flight when thrown with less power

The ultimate high-tech airsoft chronograph

easy to adjust hop-up

Paired with the Lancer fast trigger the Gen 3 are going to be shooting a barrage of BBs down range

HK Fossil - Eclipse CS3 - Storm Fill Stations This is the easiest wayMeet the HK Fossil Eclipse CS3 which offers more, across many aspects of its design. Let's start with the NEW OP Core drivetrain. With its Industry First Fully Double Decoupled drive (FDD), and integrated auto dwell dynamics (ADD) it provides supreme consistency, efficiency and reliability, in our most powerful and intelligent spool drive assembly to date. Its 50% increase in valve chamber volume enables the OP Core to operate at an insanely low