HK Fossil - Eclipse CS3 - LE Chameleon Battery Accessories New optional Barrel Kit available

New optional Barrel Kit available

Gearbox: VFC Avalon V2 Gearbox with ECS

it is also highly customizable

Paddle Style Magazine Release

HK Fossil - Eclipse CS3 - LE Chameleon Battery Accessories New optional Barrel Kit availableMeet 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