Hop up problem

Discussion in 'Gun Building, Modifications & Repairs' started by salemairsoft, Jul 18, 2012.

  1. salemairsoft

    salemairsoft New Member

    54
    0
    West Liberty
    I have a problem with my hop up on my jg M4. When i put the nub in it is already about 60-70% on and i cant get it to just sit there not pushing on the bucking. I cant get it to go any lower than like 60% on when i turn the gears on the hop up. I turn the hop up all the way down and the nub is still pressing on the hop up pretty hard. I could use anybodys help to fix this.
     
  2. Kalashnikov1974

    Kalashnikov1974 New Member

    93
    0
    Butte
    what is the nub? (20 characters)
     

  3. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
    2
    Boston
    Did you shim your hop up arm correctly?
     
  4. salemairsoft

    salemairsoft New Member

    54
    0
    West Liberty
    How do you do that? .
     
  5. alex

    alex New Member

    4,791
    9
    Atlanta
    use the original nub. i'm assuming you replaced the bucking. madbull buckings comes with an over sized nub. it works well with heavier bbs, but causes .20's to overhop.
     
  6. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
    2
    Boston
    Read tacketts guide to fine tuning a hop up I believe it is in the gun building and modification stickies.