Airsoft Hardware > Gas Powered Guns

need help lower fps

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feelinfilipino:
hi i am currently in the process of buying a king arms m4 gbbr  fps is 460 is there a way to drop it down to 330 for places like vanguard/ and tempe

TrevorAirsoft:
thats a pretty big drop! ummm i'd say your best bet is getting a spring change. you can try a crawler barrel i just dont if it'd drop your fps that much

spazz:
lol, trevor, mabey you should fully read and understand the platform that he is asking about before you start giving out tech advice.
that might work for the common aeg, but as he is asking about the king arms "GAS BLOW BACK" rifle, he will need to take different steps.

what you need is an n-pas valve avalible from ra-tech. here is a video from ra-tech demonstrating its use.
https://www.youtube.com/watch?v=FUGabSAoj2Y

hope this helps.
if you need any further assitance you can contact me at command post: 602-863-2569

TrevorAirsoft:

--- Quote from: spazz on February 05, 2015, 10:20:01 PM ---lol, trevor, mabey you should fully read and understand the platform that he is asking about before you start giving out tech advice.
that might work for the common aeg, but as he is asking about the king arms "GAS BLOW BACK" rifle, he will need to take different steps.

what you need is an n-pas valve avalible from ra-tech. here is a video from ra-tech demonstrating its use.
https://www.youtube.com/watch?v=FUGabSAoj2Y

hope this helps.
if you need any further assitance you can contact me at command post: 602-863-2569


--- End quote ---
LOL my bad man! Didn't see the gbbr part for some reason hahahahaha

feelinfilipino:
would this npas work in it ? http://www.amazon.com/gp/product/B008HUEW8G/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

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