GG M16A3 DMR Build

Discussion in 'Gun Building, Modifications & Repairs' started by CoppertopNeasg, Jul 21, 2012.

  1. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    I currently have a g and g full metal m16a3 body and front assembly however it does not have a gearbox. I am planning on using it in a DMR build. My first question is can the shell withstand a Systema m150 if I radius it and install a 70 d Sorbothane pad. My second question is can SHS parts be installed without major modification . I plan on replacing the piston, piston head, cylinder, cylinder head, air nozzle, spring guide and gears with shs, guarder and Systema parts. I also plan on installing a Prometheus 509 mm 6.03 barrel, rhop and a modify hop up chamber. I also plan on adjusting the aoe, shimming and doing the usual air seal modifications. The reason I am buying a full gearbox is that I know jg has quality parts and I will use them in other builds and repairs so they will not be going to waste. That brings me to my third question is it cheaper in the long run if I buy this drop in gearbox and buy the parts in what I would guess could call bulk than if I bought them individually in the future. Thanks for your help.
     
    Last edited: Jul 21, 2012
  2. Lefse

    Lefse Well-Known Member Supporting Member

    6,226
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    I would rather get a Lonex shell and buy all the parts individually. Lonex shells are heavily reinforced and should easily handle an M150 with the mods you mentioned. Don't bother with Systema parts, they aren't really worth the money, go for SHS or Lonex parts. A lonex A2 motor should work nicely for your setup, it has tons of torque and will give a very nice trigger response. JG parts are good, but I would recommend SHS or Lonex parts over JG. JG makes good parts, but they have some weird designs.
     

  3. theonlyBuster

    theonlyBuster Active Member Lifetime Supporter

    14,150
    14
    S. Florida
    I have to agree with NorTech. Most Systema kits and parts simply are not worth the money in terms of performance, the price tag is simple for the Systema name.
    SHS parts will do you just fine, as well as a nice strong gearbox such as the Lonex pre-mentioned.

    Also If I remember correctly, Clandestine Airsoft sells TBB with the r-hop pre-installed.

    To answer your third question, it depends on the gearbox. I've used a few Drop-in gearboxes. Sometimes they're built adequately, other times I find myself replacing/fixing parts. But every single time I've had to work on compression. If you buy a drop in, count on shimming and bettering the compression regardless. Beyond that, it's a gearbox by gearbox question.
     
  4. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    The only Systema part is the spring everything else will be shs. The main reason I was going to buy the drop in gearbox was so that I could use the small parts like the tappet plate, selector plate, cut off lever etc and the use the other parts on other builds. But I think I will get either the lonex gearbox shell that was suggested and just pull the above parts out of one of my broken guns or I could buy the lonex gearbox shell and the jg drop in gearbox. I know I will use the parts from the jg gearbox eventually and that way I won't be spending $10+ dollars just for a cut off lever.
     
    Last edited: Jul 22, 2012
  5. CoppertopNeasg

    CoppertopNeasg New Member

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    Parts List-

    Lonex Orange High Torque:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_10&products_id=155

    SHS Cylinder Head:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_19&products_id=45

    SSH Type 0 Cylinder:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_23&products_id=74

    Super Shooter Piston Head:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_20&products_id=62

    SHS 15 Tooth Full Metal Rack Piston:
    http://clandestineairsoft.com/index..._id=56&zenid=64c5714e323b001d1339855ea23e3860

    Super Shooter Ball Bearing Spring Guide:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_13&products_id=86

    Aluminum O Ring Air Nozzle:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_14&products_id=25

    Lonex 8 mm Gearbox Shell:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_35&products_id=141

    SHS Antireversal Latch:
    http://clandestineairsoft.com/index.php?main_page=product_info&cPath=1_6_9&products_id=103

    SHS Infinite Tourque Gearset 32:1:
    http://tigertacticalairsoft.com/generation-super-high-torque-gear-p-955.html

    SHS Trigger Box:
    http://tigertacticalairsoft.com/trigger-switch-gearbox-p-734.html

    I have 14 gauge wiring, deans connectors, a cut off lever, those little motor connectors, a selector plate, all the various gearbox springs, a Systema m150 and a cut off lever already. I am just going to build the gearbox from parts.
     
    Last edited: Jul 23, 2012
  6. RCV

    RCV New Member

    2,852
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    Buy an M150 complete Lonex GB from wgc or shooterbc gear...
     
  7. levirocks

    levirocks #FreeNuggy Lifetime Supporter

    2,697
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    arlington
    I like this guy^. He knows what to do.
    The person above RCV.
     
  8. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    I am going to have to tear the lonex GB apart reshim it, spend hours messing with compression, check and possibly resolder every connection, clean out all the grease and regressed the gearbox. I am willing to put up to $300 into this gearbox alone in the next few months and I don't have to pay for labor so it is much easier for me personally to start building with more of a blank canvas of parts than being stuck with the ones lonex picked out for me. Thanks for showing me those gearboxes though I may use one on a lower stress build.
     
    Last edited: Jul 23, 2012
  9. GreenListerine

    GreenListerine New Member

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    If you use 32:1 gears, you need a half tooth type piston. Just letting you know
     
  10. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    Why? Other people I know have used regular pistons and 32:1 gears with no problem.
     
    Last edited: Jul 23, 2012
  11. Mystery43_4

    Mystery43_4 New Member

    1,307
    2
    Santa Barbara
    Because the Sector's step down teeth that contact the Spur extend out and will come in contact with the Piston, and bind on the Pistons pick up tooth.

    If you know someone who has run 32:1's on a full rack piston, then either they cut the rack in half and didn't mention it, lied, aren't running 32:1's, or don't know what they're talking about.

    Only pic I have in my phone demonstrating this.

    Edit: It will bind on the pick up tooth, as well as every other tooth depending on how the Sector's Piston teeth, and Spur teeth line up. They aren't always lined up perfectly.
     

    Attached Files:

    Last edited: Jul 23, 2012
  12. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
  13. GreenListerine

    GreenListerine New Member

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  14. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    Great!..................
     
  15. alex

    alex New Member

    4,791
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    Atlanta
    i use element 32:1, includes half teeth. i use guarder PH.
    http://www.khmountain.com/airsoft/product_info.php?cPath=37_21&products_id=149

    also use a drop in JG gearbox. everything else stock with a guarder sp150. i use rubber faucet washer for AOE. selector plate modded for semi-auto and hidden full auto switch to reset semi-auto lockups. usual air seal mods and gearbox window rounding.

    replaced wiring with 16awg, mosfet + deans + 11.1v LiPo
     
  16. CoppertopNeasg

    CoppertopNeasg New Member

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    Boston
    What motor do you use?
     
  17. alex

    alex New Member

    4,791
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    Atlanta
    you can use any neodymium motor. the 32:1 gears takes the load off the motor. you can also use the gray stock motor, but they don't handle 11.1v too well. JG blue is not necessary. it's too slow. if don't want to use the 32:1, you can use stock JG gears with the JG blue. but it will drain your battery really quick (high amp load).
     
  18. Lefse

    Lefse Well-Known Member Supporting Member

    6,226
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    The Lonex A2 motor won't struggle with an M150 on standard ratio gears. I would just go for an SHS 18:1 set with 1st gen bevel and a strong li-po.
     
  19. CoppertopNeasg

    CoppertopNeasg New Member

    1,440
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    Boston
    I think I will avoid the hassle and go with the lonex a2 high tourque and use my old Gen 1 shs 18:1 gears then. That way I don't have to deal with the half tooth pistons.
     
  20. alex

    alex New Member

    4,791
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    Atlanta
    it will drain your battery really quick. if using stock 18awg, expect heating issues. your NiMH battery may not be able to supply the motor enough amps to pull the m150.