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Kmp9 Fps With .25 And Lower Fps Bolt


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#1 Polskapolska

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Posted 21 February 2012 - 06:55 PM

Hey i need some help, my cqb field around here has a 300fps limit and i want to buy the mp9 with the lower bolt system and i am woried that if i chrono it with .25 it will not go under 300fps... If anybody knows the average chrono please help

#2 gcw360

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Posted 21 February 2012 - 07:08 PM

My MP9 was firing 390-400.  When I put in the LPB it dropped into the the mid 330's (about 335) with .2's.  Now YMMV but that is what I saw.  If that held true for you it would shoot very close to 300 with .25's.

#3 Polskapolska

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Posted 22 February 2012 - 03:30 AM

The problem is this place is very strict about fps reading, a guy got 301 with an m4 and they did not let his gun go through, i need to know 100% sure if the mp9 will go under 300 with those things and if not any other gbb full auto like the m93r or fmg9 that will

#4 niko_gpsy

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Posted 22 February 2012 - 06:28 AM

A low power bolt will definitely get you under 350 but under 300 may be difficult to say for sure. And if your CQB field is that strict you may want a plan "B" just in case.

#5 Polskapolska

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Posted 22 February 2012 - 12:55 PM

Ahh then im not sure if its a smart idea, might just buy a stubby m4 and trick it out for cqb





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