Adjustable Hop Up for M249 V2/V4
- Hop Ups Increase Firing Distance and Improve Accuracy by Applying Back Spin on the Gel Balls as They Leave the Barrel.
- High quality Hop Up
- Fully Adjustable
- Perfect fit for M249 V2/ V4
- Fit to end of barrel with flap on top
- Tighten grub screws
- To increase lift, simply adjust by turning grub screw clockwise to increase angle of the flap.
- 1 x Hop up