Rifle Accessory – Valken Battle Machine Main Spring M90

Valken Battle Machine Main Spring M90 – Rifle Accessory

Optimize your AEG’s performance with the Valken Battle Machine Main Spring M90. Designed for moderate FPS output, this high-quality spring is ideal for indoor fields or builds focused on control, speed, and consistency.

Features:

• Genuine Valken Battle Machine upgrade part

• M90 spring rating for approximately 300–330 FPS (with 0.20g BBs)*

• Consistent compression for reliable velocity

• Durable steel construction for long-lasting use

• Compatible with most standard AEG gearboxes