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KWA M4A1 Carbine Fps Reduction


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#1 DaTigah

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Posted 04 June 2008 - 04:17 PM

Does anybody know how many rounds (bb shots) will it take for the KWA M4A1 400 fps spring to die down? And does anybody know how low can it go?

#2 Guest_Radix_*

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Posted 05 June 2008 - 10:13 AM

The break-in period for the M120 springs is "usually" approx. 2,000 rounds or more. It should settle to around 280 to 290 FPS using .20BBs.

#3 DaTigah

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Posted 05 June 2008 - 11:15 AM

 Radix, on Jun 5 2008, 02:13 PM, said:

The break-in period for the M120 springs is "usually" approx. 2,000 rounds or more. It should settle to around 280 to 290 FPS using .20BBs.

Wait 280 to 290 fps? From 400 fps? I think you meant 380 to 390 fps if i am correct.

#4 Guest_Radix_*

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Posted 05 June 2008 - 11:20 AM

 DaTigah, on Jun 5 2008, 12:15 PM, said:

Wait 280 to 290 fps? From 400 fps? I think you meant 380 to 390 fps if i am correct.

Oops! :P  Your right,  380 to 390 FPS with .20

#5 vic_man4

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Posted 05 June 2008 - 01:44 PM

 Radix, on Jun 5 2008, 11:20 AM, said:

Oops! :P  Your right,  380 to 390 FPS with .20

:| When I read that I just about quit airsofting :X

#6 engl4nd24

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Posted 10 January 2009 - 05:05 PM

 Radix, on Jun 5 2008, 01:13 PM, said:

The break-in period for the M120 springs is "usually" approx. 2,000 rounds or more. It should settle to around 280 to 290 FPS using .20BBs.

Phew, scared the crap out of me there mate.




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