Bore-up kit

[Derek Ewen]

I have done a little research on the bore-up kits but am unsure wether I need one. I have a 550 mm 6.03 tight-bore with a stock gearbox from a TM G3 sas. If I do need to get a bore-up kit, what would you recommend?

[Derek Ewen]

And if I do get the bore-up kit I would also upgrade my spring to about sp140.

[Spartan]

Anything over barrel over a 510 should have a bore up kit. I would keep a SP120 though. I think an SP140 would shoot a little too hot.

[Derek Ewen]

I am thinking that this bore-up kit from AEX would work, but what does the "extensive cylinder" part mean? Bore-up

[Bluewolf]

There is a lot of good advice here.

But here is another site

http://www.airsoftsociety.com/forums/

 

And possibly for your question on the forum

http://www.airsoftsociety.com/forums/f10/bore-up-kit-664/

[Ziggy]

The exteded cylinder is usually only made to fit in CA25s and PSG1, Im pretty sure it wont work in a g3 gearbox. Ask the guys at AEX, theyll know what you need.