Shark Hopup Bucking was originally designed to prevent double feeding.
By having 3 special “fins” inside the bucking. Shark Hopup Bucking can hold one and only one B.B. tightly in the chamber.
It was found that this bucking could enhance the velocity on some AEGs.
But not all AEGs will have the same results and the result could be different from one AEG to another.
The friction (from 3 fins) applied onto B.B. will enhance the velocity.
Pack includes 1 x Rubbers. 1 x Silicone buckings & 2 x Spacerss