Upgrade your airsoft game with the Unicorn  hop-up rubber. Engineered for precision and consistency, this essential accessory enhances the accuracy of your GBB models from renowned brands like Marui, VFC, KJW, WE, and AW. Designed for seamless performance, the hop-up rubber ensures your shots are always on target. Available in a discreet black color and perfectly fitting to give you the edge in every skirmish.