smoe more help
 

Ok i decided to get a sr 16 from TM, but one thing, i am going to get pre upgrades put in it before i get it and was wondering with the ammount of tension the spring will have should i get a upgraded gear box?

It depends

you should find out if your local games have rules and regulations and FPS caps.

400 or less is usually recommended for safety purposes.

If your just getting into airsoft try a stock gun for a while.

Moved to Upgrades & Modifications forum.

Because that's where questions about "Upgrades & Modifications" should be...

New people, with airsoft, should not look past getting better bushings or a better piston. Basically, don't touch with the speed stuff till you've actually handled the gun.