![](https://www.monkeemods.com/nerf/image/cache/catalog/monkeemods/Firefly%20Blaster/20211008_100527-550x550w.jpg)
MM Firefly 12KG Main Spring
- Stock: In Stock
- Model: MM Firefly 12KG Main Spring
- Weight: 0.10kg
USD2.75
This tougher spring that is bundled with Monkee Mods Firefly Blaster. Get it replaced when your spring is wearing out.
Spring Rate: 12KG
Expected FPS in Firefly: 200 FPS (Tested with Worker Gen 3 Dart)