Changing the butterfly plates


  1. Remove the two screws (PH10-3) on the button plate (PH10-2)
  2. Remove the button plate (PH10-2)
  3. Remove the two screws (PH10-7) holding the butterfly retainer (PH10-8)
  4. Remove the butterfly plates (PH10-9-1HR | PH10-9-1HL | PH10-9-2 | PH10-9-3HL | PH10-9-3HR)
  5. Find the proper carbonated/non carbonated configuration that you are looking for on page 10 and 11 of the M4 bargun user manual
  6. Place the new butterfly plates (PH10-9-XX) onto the handle (PH10-113)
  7. Reinsert the butterfly screws (PH10-7) and butterfly retainer (PH10-8) and screw tightly (don't over tighten!), make sure the butterflies (PH10-9-XX) are snugly seated
  8. Place button plate (PH10-2) back on the handle
  9. Tighten screws (PH10-3)

Parts needed

Part No. Description
PH10-3 Button Plate Screw
PH10-2 Button Plate (Black)
PH10-7 Bottom Plate Screw
PH10-8 Butterfly retainer
PH10-9-1HL Plate - 1Hole-Left Hand
PH10-9-1HR Plate - 1Hole - Right Hand
PH10-9-2H Butterfly plate - 2 hole
PH10-9-3HL Butterfly plate - 3 hole left
PH10-9-3HR Plate - 3Hole - Right Hand