XYL Unicorn Springs

XYL Unicorn Springs Upgrade Introduction：

The XYL Unicorn springs are compression springs compatible with the original XYL Unicorn blaster. Use this series of upgraded springs to tune your blaster for a higher FPS cap!

Specifications:

• Dimensions (spring):
  • Wire diameter: 1.6 / 1.7 / 1.8 / 2.0 mm
  • Length: 135 mm
  • Outer diameter: 21 mm
  • Coils: 16.5
• Performance:
  • 131 FPS with 1.6 mm spring and stock 160 mm barrel
  • 147 FPS with 1.7 mm spring and stock 160 mm barrel
  • 153 FPS with 1.8 mm spring and stock 160 mm barrel
  • 138 FPS with 1.6 mm spring and 290 mm barrel
  • 157 FPS with 1.7 mm spring and 290 mm barrel
  • 168 FPS with 1.8 mm spring and 290 mm barrel
  • 220 FPS with 2.0 mm spring and 290 mm barrel
• One pack of three springs