Fps airsoft Flat Hop-Up 60° shore -20°C +80°C (HU60F).
Evolution of the prototype made for Nikk Sakk Airsoft Custom to beat the Guinness World Record in long distance AEG shooting.
High quality soft Flat Hop-Up chamber packing featuring zero inner humps inside.
It is designed for Marui compatible AEG replicas.
Improves BB flight in long and straight direction.
No internal humps allows a greater range of adjustment.
It is made of heat and oil stains resistant custom elastomeric compound.
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