[G.I. Joel]

Originally Posted by Lisa

Check out Illusion's spring guide http://www.airsoftcanada.com/SpringChart.php Granted your gun is different so your results will not be exactly the same but you can see how a different spring will compare to one you've already got.

Thanks I did look there, Thats where I thought A 100 spring would work best.

Originally Posted by m102404

With the stock KWA (guessing M4)...I would guess (everything through the internet is a guess ) at putting in a Modify S90+ spring. Although the "strict" conversion of 90m/s only works out to 297fps...with the setup of that mechbox/AEG you'll probably hit closer to 340.

I've seen plenty of mid-upgraded (i.e. good piston heads, air nozzles, tightbore and bearing spring guides) that have shot 360-370fps w/ 0.20g bbs with a M100 spring.

If you want to be sure of being under the MAX limit (and it is a limit no an objective) of 350fps...err on the low side. For most indoor engagement ranges even 330 is plenty.

But buy a Modify S100+ as well...you never know for sure until you chrony it!

Tys

THanks, Tyson. I thought a 100 would work well. I have a 6.01TB installed, so I guess I was throwing my guesstimates off with that in mind.
Well I've made up my mind then. Thanks for the Help....now to aquire a chrony...lol I was thinking that most stock AEG's have a 100 spring stock and shoot 330-375 with that.