Lowering FPS...A little

[Dexst]

Hi all,

Ive ordered an CYMA M1A1, it shoots 360FPS.

Most indoor games are 350 and under.

most hosts are strict on this.

So My question is....how can i lower the FPS 8-10 with .2g BB's

Thanks Alot guys

[ILLusion]

Swap the spring to a Prometheus MS100SP

[cbcsteve]

And if you can't find any of above mentioned springs or if its sold out

Get:
- Modify 90 Spring: Should seat you around 330-350 FPS

www.airsoftparts.ca

[Cheesevillage]

^

That makes no sense.

[ShelledPants]

Originally Posted by cbcsteve

And if you can't find any of above mentioned springs or if its sold out

Get:
- Modify 90 Spring: Should seat you around 330-350 FPS

I put one into my TM P90 with a 455mm barrel and it shot one time at 349 FPS with a fully charged 9.6v (Just a few FPS shy of not being able to play at Defcon paintball that I co-host at :P)

But with a half used 8.4v battery it went back down to 328 FPS

www.airsoftparts.ca

That doesn't make sense. :| Battery's power the motor which pull back the spring. The springs release of it's potential energy is the cause of the bb's speed.

A powerful battery pulls the spring back faster, but does not make it go forward faster.

[Dexst]

can i but this spring in myself, and readily swap it back and forth?

[ShelledPants]

Originally Posted by Dexst

can i but this spring in myself, and readily swap it back and forth?

How comfortable are you disassembling your gun's mechbox? I pull my spring out all the time, takes around 30 minutes.

[demco11]

Besides getting a TM velocity reducer, or changing your spring... theres not much else you can do.

[Brian McIlmoyle]

One should not seek to maximize FPS to the limit.

300 fps is the target... 350 is the limit.

Particularly in places with no mercy and 0 distance engagements... you don't need to be shooting at 350 ..

350 will cause bleeders, 350 will cause welts...

I've seen guns shooing at 320 penetrate skin and lodge the bb below the skin requireing minor "home surgery" to extract.

For indoor play you should be going for 270- 320 basically TM stock

[Dexst]

well the CYMA M1A1 is stock 360, so im trying to lower the FPS To 300ish not raise it BRIAN.

[cbcsteve]

Originally Posted by Cheesevillage

^

That makes no sense.

Yes I was wondering that too I am not misinforming but either by coincidence of that cold day on the battery or of my crappy 8.4v that was low energy I got 328 FPS instead of my usual 340-350 FPS

But that did happen, makes no sense why, just came to terms accepting that it was a dying battery

[Dexst]

Ok, so where can i a) get the spring and B) have it changed?

[TriChrome]

You can place multiple layers of something like duct tape between the hop-up unit and the gearbox shell which will move the nozzle back a little bit and cost you FPS.

[Brian McIlmoyle]

Originally Posted by Dexst

well the CYMA M1A1 is stock 360, so im trying to lower the FPS To 300ish not raise it BRIAN.

Yeah I got that... but I hear of guys upgrading their guns to shoot just under 350 .. for indoor..

there is no reason to upgrade a gun for indoor play..

Dex, you will need to swap out the spring.. to bring it down below 350

I had to do the same for my Cyma MP5 it shot 385 out of the box.

[cbcsteve]

Originally Posted by TriChrome

You can place multiple layers of something like duct tape between the hop-up unit and the gearbox shell which will move the nozzle back a little bit and cost you FPS.

What....? No don't do that! You must be joking...

Illusion already told you what spring you should use as well as if you scroll up I linked you to a site.

If they are sold out Google the names and you will find one eventually, time to hunt my friend