Description

    MadBull
Hop-Up  rubber

The 60
degree Hop-Up rubber is a little softer that the normal 80-90 degree hop-up rubbers.
Thanks to this it is easier to install and use.The hop-up
rubber is made of silicone thanks to what is keeps its properties even in low
temperatures while it does not become hard just like in the case of normal
rubber. It performs perfectly in both, typical and below zero temperatures.

Thanks to the application of the special
blocking system known as the “Shark Hopup”, there can be only one BB
pellet in the chamber. In some cases, thanks to this hop-up rubber, the
replica gains better FPS properties.

    What is the
Hop-Up system?

The Hop-Up system is a
system giving the BB pellet shot by airsoft replicas a spin movement. It uses
the Magnus effect to flatten the trajectory of a flying bullet and, therefore,
it makes it look similar to the trajectory of a real firearm’s bullet.

In reality, it is a
properly shaped rubber or silicon seal that by touching a sped BB pellet gives
it a rotation. The easiest way to explain what the Hop-Up system is to say that
a BB pellet that is spun from one side generates more friction to the air so
that it can turn. If the rotation will take place in the horizontal axis the BB
pellet will turn upwards and compensate the force of gravitation.

The level of how strong the
Hop-Up rubber touches the BB pellet determines how strong it will rotate and,
therefore, go up. The heavier the BB pellets is the greater must be the
pressure of the Hop-Up rubber ( while the heavier BB pellet has a greater
inertia and falls down more quickly ). It works the other way around too – when
a light BB pellet will be rotated to strongly it can go above the firing line.