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Post by gugesmk3 on Aug 2, 2016 12:50:53 GMT
An easy way of increasing FPS is lengthening the inner barrel.
On some models it works better than others.
On the VFC/CYB M&P you can bump up velocity from 290fps to 360 just by switching barrels....though you will need to cover it with a hider or mock suppressor.
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