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- 14-day right of withdrawal and 365-day returns
- Shop and workshop in Aulum, Denmark
About Action Army M120 Spring
The Action Army M120 is a progressive spring for AEGs with V2 and V3 gearboxes. Use it when you want to tune your AEG's performance or replace a tired spring during a service.
The spring weighs 14 g and is progressively wound.
M120 spring – what you need to know
- Progressive winding: The coils sit closer together at one end, so the spring works more softly at the start of compression and puts less load on the gears.
- Fits V2 and V3: Works in the most common gearboxes for M4, AK, G36 and similar.
- Several strengths: If you need more performance, the M130 and M140 are also available.
Who is it for?
The spring is for players who build or service their own AEGs. The actual velocity depends on cylinder, compression and inner barrel, so always measure with a chronograph after fitting. Fitting is available at our workshop in Aulum, Denmark.
Maintenance and safety
Check your site's velocity limits before you change the spring, and always wear eye protection when opening a gearbox.
Delivery and returns
Shipping options and prices for your country are shown at checkout.
Full 14-day right of return with a money-back guarantee. Unused items in unopened packaging can be returned for up to 365 days in exchange for a gift card. Easy returns via our returns portal. Read more in our terms and conditions.
