Nope, just use a heavier grade bb to bring down the FPS to below 400.
you sir are wrong and if we catch you useing this method to beat the chrono will be kicked out of any games you do this at and will earn you a shity reputation in this comunity by doing this.
this is cheating. that is why you are supposed to chrono with .20g bb's with the hop-up off.
i guess you will have to be watched at future games. thanks for letting us know that you arent an honest player though. we appriciate it when cheaters out themselves, saves us the hassle.
duke: if your ak is modified to shoot semi auto only and you obey the med's then there is no problem with your gun shooting at 500fps. but if you arent planning on playing the sniper role you will need to bring your gun down to 400fps with .20g bb's which is what most outdoor fields here allow.
we look forward to seeing you at future games.