Upgrades for JG M4A1

Discussion in 'General Airsoft Discussion' started by JAMEZAW9, Dec 24, 2009.

  1. JAMEZAW9

    JAMEZAW9 New Member

    248
    0
    London
    Was thinking of fully upgrading the internals of my gun. This is so that my gun can be a sniper/assault rifle. I already have a tight barrel and guarder hop up, but I want to know what upgrades are available for my gun which won't damage my gun in the long term. Also I heard that if I got one thing, I would also have to get another thing etc so the parts don't break.
     
  2. JG M4 Carbine

    JG M4 Carbine New Member

    594
    0
    Southport
    just go to airsoftgi.com and e mail them and u will have your answer
     

  3. Griffin

    Griffin Active Member Supporting Member

    4,313
    5
    KWA gear box.

    SCS nub.

    Prometheus tight bore.

    Prometheus bucking.

    9.6V battery.

    Smart Charger.

    M120 spring for assault rifle, and M140 or M130 for a DMR (don't try to do a sniper rifle, do a DMR and assault rifle).

    -Griffin
     
  4. Divided Volta

    Divided Volta New Member

    1,365
    0
    With an SCS nub I almost guarantee you'll have to replace the hop up unit itself. The stock JG ones probably won't allow you to properly set the SCS.
     
  5. Griffin

    Griffin Active Member Supporting Member

    4,313
    5
    Volta: He already has a Guarder hop up as he said in this quote below.
     
  6. G36fanatic...

    G36fanatic... Supporting Member Supporting Member

    3,270
    7
    Boulder
    SCS and buckings are different. SCS pushes on the bucking. I think that's what Volta was talking about.

    Version 2 gearboxs are not idea for DMR/sniper roles because you can't upgrade to a spring high enough without cracking the shell after a short time.

    The best you can do is M120 or M130 spring with a reinforced shell and a better hop up bucking and SCS nub.
     
  7. JAMEZAW9

    JAMEZAW9 New Member

    248
    0
    London
  8. JAMEZAW9

    JAMEZAW9 New Member

    248
    0
    London
    Sorry, know it's been a while. When you say M120, M130 etc, does that means the bb goes at 120/130 meters per second?
     
  9. JAMEZAW9

    JAMEZAW9 New Member

    248
    0
    London
    So what does a M120 mean, PSI or PDI 200% mean, can someone give me a list of springs and what they mean.
    Thanks
     
  10. G36fanatic...

    G36fanatic... Supporting Member Supporting Member

    3,270
    7
    Boulder
    Actually, M120 does mean M/S. But when translated back to fps, it comes out to around 390-410fps depending on your compression and the brand of spring.

    PDI springs go by percent streangth over a standard TM spring or something similar to that. Wherever you buy the spring from, it should give you a rough estimate of the fps you should expect.
     
  11. hairyman

    hairyman New Member Supporting Member

    4,815
    1
    Dublin
    What the hell kind of answer is this,,,,you are either here to help or not at all.
     
  12. hairyman

    hairyman New Member Supporting Member

    4,815
    1
    Dublin
    No?,,,why are you even posting on these forums,,you are no help whatsoever.

    It is clear you don't know what you are talking about halve the time,,i find myself in this situation at times also but instead of giving single word/unhelpful posts or telling people to go somewhere else i take the time to find the answer and give it,,,,,not only does it educate me but it also helps others.