Upgrade your gel blaster's shooting performance with the Rock Universal Hop up. Compatible with most gel blasters, it increases shooting distance by 5 meters. Includes 2 flaps and grub screws for easy hop-up adjustment. Made with durable nylon/metal for reliable use.

Features:

• The Rock general hop up is compatible with most gel blasters which used inner barrel
• with 11mm outer diameter.
•  Increase the shooting distance for 5 meters.
• It comes with 2 flaps and grub screws for your hop-up adjustment.
  

Specifications:

Brand: rock.
Material: nylon or metal.
Outer diameter :11mm.
Inner diameter : 9.5mm.
Package includes: 1x rock gel blaster hop up.