Lancer Tactical AEG Irregular-Pitch Upgrade M100 Spring [320-390 FPS] (GG09-07)

This is a lower-powered AEG spring that will help you achieve an FPS of 320-390 depending on your supporting parts.

Features:

• Non-Liner Design
• Less Stress
• High-Quality Stainless Steel
• Anodized Piano Wire
• 140% Increased Spring Power (estimate based on average power output)