Question on Indoor CQB Spring (<360fps)

[ao_tenshi]

Hi all,

I'm totally new to airsoft, and I recently got my first aeg, a kwa m4a1, which shoots about 390-400fps stock. I'm looking to swap the spring to M90/M95 to lower the fps to game legal (<360fps). Will be running 7.4v 25C Lipo. But have a few questions:

1) Any standard spring on the market would be compatible with KWA M4?
2) Is there anything else I need to modify/change if I load the M90/M95 spring in?
3) Anything else I should do/consider to prep this stock aeg for gaming?

Thanks very much!

[lurkingknight]

ye
no
maybe. I'd add a lipo monitor to be safe.

[ao_tenshi]

yep, I've got the lipo monitor.

[z0ng]

Go for 350fps (on .20g BB's) or less for indoor.

[ao_tenshi]

Originally Posted by z0ng

Go for 350fps (on .20g BB's) or less for indoor.

No idea what FPS will a M90 on KWA with 7.4V Lipo will give me... expecting it to be <360fps...

[vink]

M90 should do 300-330fps.

[ao_tenshi]

Originally Posted by vink

M90 should do 300-330fps.

Would M100 safely keep me <360? Dont know how strict the CQB fields are....I just dont want to be barred from play for being like 10-20fps over.

[lurkingknight]

100 would probably put you over.. stick with the 90 to be safe, remember you don't have to sit on the limit.