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M4 problem

  • 20-08-2010 12:46pm
    #1
    RC car fanatic
    Registered Users, Registered Users 2 Posts: 982 ✭✭✭


    Installed a new 1j spring into my M4 today along with a Gunner Armoury tightbore , when it was all ready to shoot I stuck the mag in and when I went to shoot it nothing came out , upon closer inspection the bb's had gotten stuck in the barrel , the hop up was off , the gearbox was working perfectly but they still got jammed , I even put a bb in the barrel/hop up chamber and pushed it through manually so Im stuck at what to try next . Any help or anyone had this problem before

    BTW the gearbox is shooting like it should be and i can feel the air coming out the nozzle so its not a leaking air problem


Comments

  • #2
    Witcher
    Registered Users, Registered Users 2 Posts: 16,014 ✭✭✭✭Witcher


    Strip the hop up and put it back together again, sounds like that's the root of your problem


  • #3
    RC car fanatic
    Registered Users, Registered Users 2 Posts: 982 ✭✭✭RC car fanatic


    Blay wrote: »
    Strip the hop up and put it back together again, sounds like that's the root of your problem

    Will try that again but ive pushed a bb through it with a pen and it seems to go through pretty smooth


  • #4
    Witcher
    Registered Users, Registered Users 2 Posts: 16,014 ✭✭✭✭Witcher


    RC car fanatic wrote: »
    Will try that again but ive pushed a bb through it with a pen and it seems to go through pretty smooth

    Is the tappet plate functioning properly, like if you push the air nozzle in does it spring back?


  • #5
    mafiaboy
    Registered Users, Registered Users 2 Posts: 747 ✭✭✭mafiaboy


    when you say you pushed it through manually what did you use to push it true...


  • #6
    Flanders536
    Registered Users, Registered Users 2 Posts: 606 ✭✭✭Flanders536


    mafiaboy wrote: »
    when you say you pushed it through manually what did you use to push it true...


    I believe this is your answer ''but ive pushed a bb through it with a pen''

    :)


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  • #7
    AirsoftEire.com
    Registered Users, Registered Users 2 Posts: 769 ✭✭✭AirsoftEire.com


    If the hop-up unit wasn't touched, then its probably as Blay says, the air nozzle may not be properly seated in the tappet plate.


  • #8
    RC car fanatic
    Registered Users, Registered Users 2 Posts: 982 ✭✭✭RC car fanatic


    Cheers for the help , spent the whole day trying to fix this and just before I was about to loose it i noticed something and this may be of help for future reference but the little pointy thing on the cylinder head where the air nozzle sits and moves back and forward broke off and was stuck in the air nozzle , i think thats why I could still get same pressure from the cylinder but not enough to propell the bb , anyway replaced the cylinder head for a new one and works great now , thanks for all the help again


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