Airsoft Pro Hop Up Unit Stability H Nub

£5

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AirsoftPro Hopup Stability H-Nub

An interesting concept which has amazing results!
Instead of the standard tube-style packing, this ‘H’ shaped packing replacement forces the hop rubber into a more natural cup around the BB.
So instead of the hop rubber just gripping the top edge of the BB, the ‘H’ packing will grip a much larger surface area and therefore offer more spin and finer adjustment.