Upgrade Adjustable 3D Print Hop Up Hopup 7-8mm Balls Jinming Gen9 M4A1 Generation 9 dsj9

Compatible For: For JinMing Gen9
: Black
Material: 3D Print ABS

Features:
- This product is adjustable friction top spin, suitable for JinMing Gen8/Gen9.
- Please be careful when you screw the screws to prevent damage from topspin.
- The recommended size of the water bullet is 7.0-7.4 mm. The two screws can be used to fix the upper spin at the muzzle.
- ABS plastic, which is turned into solid printing, is far better than PLA in temperature resistance. There is no need to worry about hot deformation in summer.
- The water bullet bubble must be wiped dry on a towel , otherwise the water on the surface of the bullet will weaken the upper spin friction effect, resulting in sliding bullet.

Package included:
1 x Hop Up
1 x Wrench
2 x Screws

Notes:
1. Just for replacement, NOT OEM part.
2. Manual measuring, please allow 1-3mm error, thank you.
3. Due to the difference between different monitors, the picture may not reflect the actual of the item. We guarantee the style is the same in the picture.








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