MadBull Ultimate Hopup Unit + LED completed unit

With this new hop up design you will not have to worry about losing and dropping several bb&#39s with a magazine change. This new design provides you with a way to keep bb&#39s in your AEG and ready to use and not on the floor and even better it stabilizes the top of the magazine to ensure a secure and flawless feed of bb&#39s into the AEG.
CAUTION: This hop up unit is designed for the experienced and responsible Airsoft player. With the magazine removed the AEG is still able to fire several bb&#39s.
Always wear safety goggles and treat all Airsoft weapons as if they were loaded.