M4/M16 Charging Handle Spring | FREE Delivery over €50 (ROI)
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Manufactured by Madbull, this spring is a replacement for the charging handle spring on the inside of an M4/M16 upper receiver. Sometimes these springs can be pulled too far, and are stretched in the process.
Installation requires stripping the upper from your receiver, and removing the barrel and hop up. It is not a difficult repair, however it can be a bit tricky to place. If you are at all unsure, please seek the aid of a professional