DK Adjustable Hop Up for JM M4A1 J9

$24.99

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DK Adjustable Hop Up for JM M4A1 J9


Features:

  • Hop Ups Increase Firing 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 M4A1 J9

Instructions:

  • 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.

Package includes:

  • 1 x Hop up

70 in stock

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