Action Army Hop up Nub (AEG)
Manufactured by Action Army, these hop up nubs are replacements for your factory stanadard AEG nub. They are neither soft, nor hard, giving a middling performance without the risk carried with harder nubs.
The hop up nub is the piece that pushes into the hop up rubber; the harder it is, the more of your hop up rubber is pushed into your barrel window. Softer ones are more forgiving, helping prevent jams.
This twin-pack will help keep your gear in tip top shape
|Upgrade Parts - Barrel & Hop Specification|