AIRSOFTXP
MANUFACTURER: Madbull
MadBull Airsoft red rubber hop-up bucking 60°(2pcs)
The Shark bucking and Fishbone X Balancer were originally developed for
the MadBull 470 CO2 powered drop in mechbox to prevent double feeding of
BBs and to prevent BBs from rolling out of the barrel.
By having 3 special "fins" inside the bucking, Shark Hopup Bucking can
hold one and only one B.B. tightly in the chamber. In the mean time, to
our surprise, we found that this bucking could enhance the velocity on
some AEGs. Not all AEGs will have the same results and the result could
be different from one AEG to another. Unfortunately, we don't know the
exact reason because each AEG has its own characteristics. However, we
do believe that the friction (from 3 fins) applied onto B.B. will
increase and slightly build up the pressure behind the BB before it
starts traveling down the barrel thus enhancing the velocity much like a
blow gun, spit balls with a straw or similar concepts.
The Fishbone X Balancer is designed to produce and even downward
pressure across a greater surface area of the BB in order to less the
chance of off axis back spin being induced from the hop p system with
traditional round nubs.
Why 60 Degree? 60 degree rubber is softer than normal 80-90 degree rubber. The softer rubber tends to create a good air seal with the nozzle Softer
rubber provides higher friction/grip and makes the hop up effect more
pronounced with less velocity loss associated with typical hop up
systems where the hard bucking must be pressed deep and hard into the
hop up relief cut on the barrel. This causes dramatic reduction in speed
How to install:
Apply some silicone oil inside and outside the bucking when installing onto the barrel and into hop up chamber.
Tech Note: Hop-Up Buckings are wear items and should
be changed as often as feasible. And should be replaced when upgrading
or anytime the inner barrel is removed from the hop up unit. Small pin
holes and tears can occur when removing and reinstating used buckings. |