Maple Leaf hop-up bucking 70°

high quality hop-up bucking for GBB inner barrel, made by Taiwanese Maple Leaf brand
Compatible with WE and Marui.

Wide range of bucking hardness for different muzzle velocity:
- 50° for muzzle velocity below 110 m/s (360 fps)
- 60° for muzzle velocity 90 - 120 m/s (295 - 390 fps)
- 70° for muzzle velocity 110 - 140 m/s (360 - 460 fps)
- 75° for muzzle velocity 130 - 150 m/s (430 - 490 fps)
- 80° for muzzle velocity over 150 m/s (490 fps)