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Mad Bull Fishbone Bucking.

ID: 27088 (BU-MB-SAH)
4.0 stars, based on 4 reviews


MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

How to install:
(1) Please apply some oil outside the bucking when installing.
(2) Also, remember to replace the spacer to the X type one. NOTE: X spacer is not good for all AEG.
(3) If you have problems to shoot out B.B., please apply some oil "inside" the bucking.

About this product:
Shark Hopup Bucking is original designed for 470 to prevent double feeding.
By 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 AEG.
But not all AEG could have the same results and the result could be different from one AEG to another.
Unfortunately, we don't the exactly reason because each AEG has its own condition.
However, we do believe that the friction (from 3 fins) appied onto B.B. will enhance the velocity.

Rubber v.s. Silicon:
To say the truth, we prefer the rubber bucking. It is duriable and cheaper.
However, a lot of people prefer Silicon bucking because it seals Air better. (but break easily.)
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4 Customer Reviews

(Write a review)

by kari-lynn k. on 06/19/2015
"great bucking. installed on my Cybergun F.A.M.A.S. DMR and it improved fps by a lot, (which is needed when you shoot .36g BB's), and the accuracy is like 3x better than stock. would also be because of the JBU 6.03 590mm TBB
by joseph s. on 08/30/2008
"I chronograph with my guarder speeder 2000 and was at 426 fps after installing the black rubber I choreographed in at 478 fps it worked very well I have paid more to get less in the past this is worth it if it works in your gun I have a ca m16 gearbox is all modified and upgraded 5 out of 5
by Douglas V. on 07/22/2008
"Doesn't work very well for this price. It performs like a stock bucking would. Just go with systema

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