M4 Charging Handle Spring | FREE Delivery over €50 (ROI)

Airsoft guns have a lot of different springs - they're virtually everywhere you look. Over time springs can stretch, weaken, or break, so by replacing them you can keep your replica in tip top shape. The most common spring type is the main gearbox spring, responsible for the power output of your replica. These are typically rated in Meters per Second, however it is important to remember that there is no base-line. Each manufacturers determination of an M100 will differ (often significantly).

Inside your gearbox you'll find a lot of other springs - from springs for your trigger, anti-reversal latch, safety block, trigger contacts (sliding contact), tappet plate, etc. Replacing these can give your gun a new lease of life, making it feel more responsive.

Springs require you to disassemble your gearbox completely to install, so if you are at all unsure, we recommend seeking the aid of a professional for best results.

Airsoft Pro, or AP, is a world-famous brand, focused on parts for airsoft guns. Ranging from hop ups, to washers, adapters, and much more, Airsoft Pro has steadily expanded their offerings, all without compromising on quality. Based in the Czech Republic, this manufacturer are one of the leaders in the parts space, and for good reason - they design everything in-house, and their focus is on performance.

This spring is for AEG M4's, and for the charging handle. Sometimes, after vigorous action, the spring can stretch, and although it will not affect operation of your replica, it is nicer to have everything in tip-top shape. Installation requires partial disassembly - remove the upper receiver and barrel and hop up, and you  have access to the charging handle assembly.