Prometheus Non-Linear Upgrade Spring for Airsoft AEGs

Features

• Non-linear spring design made of high quality spring steel
• Upgrade spring allows you to custom-tune your AEG's muzzle velocity
• Naming convention follows meters per second (with a 0.20g BB), allowing you to quickly reference how strong a spring should be
• Color-coded for quick reference in a parts bin even if you lose the packaging
• Fits in most gearboxes that accept standard TM-spec springs

Manufacturer: Prometheus

Specifications:

Compatibility: For Tokyo Marui, EMG, Matrix, and Other Standard Tokyo Marui-Spec Airsoft AEG Gearboxes
Material: Steel

NOTE: Velocity (FPS) estimate based on average power output. Exact FPS result may vary based on alignment, installation, inner barrel, cylinder and other factors