The Madbull 60 degree hop up bucking is innovative in the way that it uses three "fins" to hold the pellets in place, providing higher compression and better stability during flight. The "Shark Hop-Up" bits replace the standard cylindrical hop up nub and spreads the back spin more evenly over the surface of the pellet, resulting in better accuracy. My experiences with this product back up these facts, and overall I am very pleased with the performance of these buckings.
-Increase velocity (albeit marginally)
-Come two to a pack
-Includes "Shark" Hop Up Nubs
-The bucking was too long to fit inside of my hop up unit (KWA G36c). The trailing end had to be cut off to allow for my barrel clip to install properly. This did not affect performance.
-Like most hop up buckings, this things a royal pain to install.
Rating: [4 of 5 Stars!]