Upgrading an ICS M16a3

[HailCyrilin]

I'm planning of buying a ICS M16A3 and making it into a semi auto aeg.
with this upgrade kit will it be able to use a sp120m/s aeg spring ?
Or what would be the strongest spring you can use without the gearbox breaking.
Will the stock gears break with that kind of spring ?

The upgrade:
special upper gear box type F with m120

upper gear box kit with metal spring guide,long barrel bore up cilinder full set,metal piston and m120 spring for all m4 ics

[manchovie]

you still need to put metal bushings into the lower mechbox.

[HailCyrilin]

what's the diameter of the bushings ?

[Death March]

I'v been running that MA-56 (type-F) for a few Months with great success and and the stock gears will hold up to the task if your running metal bushings and a good shim job.You might need a better motor,depends on what you have now.I found I needed a high-torque motor and I'm running a 9.6 1700mAh battery.I found that it's a little harder on the battery in terms of how many shots you'll get out of a charge.As for the bushings just buy the ICS ones as they drop right in,ICS uses an odd size,it's just a hair under 6mm.

[Kid]

I suggest you wait a few weeks for the retailers to get the new verion in stock.

It has steel bushings, a turbo 3000 motor, and a strengthened gearbox.

http://www.icsbb.com/news/e_news_main.asp?id=85

[HailCyrilin]

what is the version of the parts in the upper gearbox ? v2 ?

[Kid]

Originally Posted by HailCyrilin

what is the version of the parts in the upper gearbox ? v2 ?

V2
But there have been some reports of certain parts not being as-compatable as they should be... couldn't tell you exacly which though, other than tappet.