Increase your accuracy and shooting distance with the JM Gen9 J9 M4A1 Hop Up. This high quality DK Hop Up is fully adjustable and applies back spin on gel balls for improved performance. Made with 3d printed PLA and designed specifically for the JM Gen9 M4A1 gel blaster.

Features:

• Hop ups increase shooting distance and improve accuracy by applying back spin on the gel balls as they leave the barrel.
• High quality DK Hop Up.
• Fully Adjustable.
• Perfect fit for jm gen9 m4a1 gel blaster.
  

Specifications:

Brand: DK
Material: 3d print pla
Color: black
Weight: 5g
Length: 65mm
ID: 14mm
OD: 19mm
Package includes: 1x jm j9 hop up