komrad, http://filakairsoft.net/index.php?showtopic=995

meron dito instruction on how to disassemble the gun and take out the hop up chamber and the gearbox... search mo lang komrad... way around late 2007 pa yung topic na yun kaya konting tyaga lang maghanap

komrad,

Hindi pwede rewire yun papunta sa butt kasi folding ito at possible maipit.

nkita ko ung thread on how to dissambled pero ang hirap tanggalin ung pin(the big one) gmit pa ako ng martilyo. ampopo

elelkho, I also have one. you don't have to remove the big pin below the front sight or just above the charging handle and follow the steps below.

1. Fire your aeg to ensure that there are no more bb inside.
2. Remove the magazine.
3. Remove the battery.
4. Remove the charging handle.
5. Remove the selector plate.
6. Remover the screws of the hop-up assembly.
7. Remove the "L" shaped plastic tab on top of the hop-up assembly. You can do this using a medium size flat screw driver by inserting it below the "L" shaped tab near the charging handle. Push up the the screw driver with just enough force to remover the "L" shape tab.
8. By removing the "L" shaped plastic tab, you may now push forward the hop up assembly deeper creating a space between the hop-up assembly and the GB.
9. Remove the selector switch.
10. Remover the pistol grip.
11. Remover the wire from the motor.
12. Now you're ready to remover the GB, by pulling it out of the receiver.

Hope this helps.

Edit. After step 3 - removing the battery or opening the upper receiver, one will notice that pin that locks the front plastic cover will also retract. Remove the top front cover.

One may then proceed to remove the front grip. One may do this by turning the lever (of the ring that holds the front grip) up-forward and then push forward to remove the front grip. The lever is part of the ring just below the front sight and on top of the outer barrel.

One may also the proceed removing the pin that holds the upper receiver assembly. It's easy one shdn't worry.

I added this, to remove obstructions that hampers the removal of the "L" shape tab. The "L" tab ensures that the hop-up securely in place and won't move especially when firing.

My apologies, don't know how to edit previous post. Hope this helps.

nabuksan ko na ang gb nito. pinalitan ko ng element 190 spring n CA 7mm bearing busing. di maganda ung bevel nya hindi straight ang shaft. kaya pinalitan ko ng element na bevel gear.

hirap pa ako pataasin kc ang chrono 420 lng.. hanap pa nga ako ng solution d2. nahirapan ako tukuyin ano ang probs. maganda nmn ang compression. try ko palitan ang nozzle.

maganda naman ang compression nyan komrad..

try, bearing spring guide and bearing piston head..

also pinalitan ko yung stock gearset ko dati ng JG aug stock gearset.. maingay kasi ang stock gearset ng Kalash ko dati at mas tahimik ang gearset nung jg aug stock gears ko.. maingay talaga Kalash gearset ko di kinakaya kahit magdamagang break in heheheh...

and also check hop up rubber... pangit kasi nung hop rubber ko dati madaling mapunit..

Yup elelkho. I have similar experience on bit lower rated spring as yours. Medyo mahirap ngang palakasin. I've opened and tested the gb several times, pero ganun pa rin. Maganda nga ang compression. Changed the nozzle to asn, including the hop-up rubber, but was not able to clock 400 fps. Maganda naman ang compression and sealed all leaks. I think the problem is in the hop-up assembly itself. I'll update the thread, once I've change the hop-up assembly.

mababa talaga ang rating ng stock spring ng mga kalash models... perfect for a stock gun..

di stock spring gnamit ko. element 190 ung blue na spring

hindi ako familiar sa element springs.. dont know what is the meter/second equivalent ng element 190 spring.. try it with a guarder/systema spring..

or baliktad ang spring nung nainstall mo.. better check it out

komrad mukhang astig yan gun na yan ah!!! how much selling nyan dyan sa Pinas?

arnies

hope this helps it did for me

BTW, just seen in www.filairsoft.com/forum/showthread.php?t=41644 na meron na rin pala ang cyma ng rk 12, vfc clone rin kaya? What about the receivers, steal na kaya and its ootb fps?