This Maple Leaf Hot Shot Hop-Up Rubber Set is made of high quality rubber material which are highly elastic and anti-wear. It is ore made the back spin trajectory of an BB pellets, by adjusting the Hop-Up to increase their potential and accuracy. As the pellet shoots through this hop up bucking, the sanctions doing the spin, it tends to roll and backspin.

Maple Leaf Hot Shot Hop Up Rubber 50 Degree for GBB Pistols
50 Degree Rubber Construction
Able to increase the range and FPS for your Airsoft
The properties of the rubber are highly elastic and anti-wear
Suit for Airsoft Gas Blow Back GBB Pistol