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Discussion Starter · #1 ·
Hey, right now i have a G3A3 by classic army. I currently have tuned it as a long-range AEG with a promy 6.03 barrel, madbull X-Nub/60 degree hopup bucking and SP120. However i want to get more range and performance out of it. I need to buy a SP120 for my other AEG anyway, so i figured i'd get a slighty higher spring for my G3 while i'm at it and just take the sp120 from it.


I'm planning on the following upgrades:

Systema Hopup Bucking
Shredders Concave Spacer


Spring that will land me around 415 with .25's (keep in mind i have a no-hole cylinder, long tightbore and dual ball bearings)


Any upgrades i should also consider? I need a good spring reccomendation too, what would suit my needs?
 

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before doing that upgrade... you may want to check with your local field FPS rating... in a lot of cases its 410fps w/ .20g.

our field offered a DMR class that allowed 425fps w/ .25g but the full auto had to be permanently de-activated.
for that build i also installed high torque gears, bore-up cylinder/cylinder head, silent piston head, and an "unconventional airsoft" sniper mosfet.
 

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mojo said:
before doing that upgrade... you may want to check with your local field FPS rating... in a lot of cases its 410fps w/ .20g.
Tis good advise, who wants to spend a stack of cash on a gun only to be told its nothing more than an ornament unless you down grade it ;)

mojo said:
for that build i also installed high torque gears, bore-up cylinder/cylinder head, silent piston head, and an "unconventional airsoft" sniper mosfet.
Hi torque gears are a good option but not strictly necessary, Bore up kit - a complete waist of good money unless you plan to use a barrel that is over 600mm long, and as barrels over 510mm long are also pointless, unless you are REALLY struggling to get the FPS you require, spend your money on something you actually need. Silent Piston Head - In my, fairly vast, experience, it is that in name only. If you want quiet, sorbothane or an airbrake or a combination of both is your only option. MOSFET - definitely, absolutely, most positively get one of these, especially if you plan on using single shot only. They are cheaper by a country mile to make yourself, but a requirement to be able to use a soldering iron is a must, or else by a ready made one. I have heard that Infectious makes a good AB MOSFET ready to install :)
 

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Discussion Starter · #4 ·
My field allows it, regular full auto AEG's are allowed to go 400 with .25's, so it's really not much of a jump.

I really dont have to spend much on this, as all the parts have proven reliable at the current FPS of ~405 with .25's, and it's going 20 RPS so the drive train is not an issue either, as for reliability i will replace anything as it goes along, as i regularly relube my box so i can nip any issues in the bud. I mainly need help with choosing the correct spring for 415 with .25s.
 

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my best estimate with out actually trying one out..

Systema 130 or 140
guarder has similar numbering system
these equate to a PDI 210% or 240% respectively

on average they shoot a .2g bb 425fps(130) - 450fps(140)
 

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If your good and know what your doing to get the best seal/performance from your gun, you can get way more out of it than what mojo suggests. My M14 DMR is shooting a .2 at 438 +/- 3 fps using a Guarder M120 ;)
Just something to think about, as using a softer spring and making sure you have as close to 100% seal as you can get, will do wonders for the life span of your GB
 

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I completely Agree with you Vindi...

It is just that in my experience fewer people than we would like to think will actually spend the time to tune their weapon system the way you or I would and the way they SHOULD.

The reference I used for that suggestion was actually published in an airsoft magazine back in 2006.
These were the actual manufactures finding of what their products are supposed to perform.

I'll post it up for you guys once I get it all organized into a coherent manner.
 

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mojo said:
It is just that in my experience fewer people than we would like to think will actually spend the time to tune their weapon system the way you or I would and the way they SHOULD.
Aah, yes.... I was forgeting about the ignorant majority ::) ;)
 
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