Description

- For Maple Leaf Crazy Jet Inner barrel

- The properties of the rubber are highly elastic and anti wear.  

Recommended hardness / FPS combinations:

- 50 degree: Up to 360 FPS

- 60 degree: 295-390 FPS

- 70 degree: 360-460 FPS

- 75 degree: 425-490 FPS

- 80 degree: 490 FPS up