Viper Upgrade Spring

PRODUCT DESCRIPTION:
Increase the FPS of your Viper blaster with this 1.7 Viper Upgrade Spring from ZWQ. This spring is also compatible with the Fire Rat.

FEATURES:
• Compatible with Viper and Fire Rat 

SPECS:
• Material: Spring Steel
• Dimensions: 1.7mm Wire
• Weight:

ADDITIONAL LINKS:
• ZWQ Viper Blaster