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CQR Mod2 going outdoors - FPS upgrades?

CQR inner barrel spring

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#1 rigma_one

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Posted 30 January 2013 - 01:43 PM

Hi All,

I've been playing indoors with my stock CQR Mod 2 all winter.

I would like to make some minor upgrades and take my gun to some outdoor games this spring and summer.

It seems that there are two primary ways to increase FPS without major modification:

1.  inner barrel upgrade - longer and tightbore
2.  spring upgrade - getting a stiff spring, but requires opening my gearbox

Can anyone recommend to me what spring I need and perhaps a good tutorial on how to change it out without ruining my gun?

Do you have any other suggestions to increase FPS?

Thanks in advance for your input!

Regards,
rig_

#2 Rain Man

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Posted 30 January 2013 - 01:57 PM

 rigma_one, on 30 January 2013 - 01:43 PM, said:

Hi All,

I've been playing indoors with my stock CQR Mod 2 all winter.

I would like to make some minor upgrades and take my gun to some outdoor games this spring and summer.

It seems that there are two primary ways to increase FPS without major modification:

1.  inner barrel upgrade - longer and tightbore
2.  spring upgrade - getting a stiff spring, but requires opening my gearbox

Can anyone recommend to me what spring I need and perhaps a good tutorial on how to change it out without ruining my gun?

Do you have any other suggestions to increase FPS?

Thanks in advance for your input!

Regards,
rig_
Hey Rigma. If you want to increase the fps of your cqr, you should get a new cylinder for it. The cylinder in the cqr was designed to shoot lower fps so it would be cqb legal. It already has an m120 spring so you dont really need to get one. Increasing the fps wont help much for your range. if you get a tightbore barrel that will increase your range and accuracy.

Edited by Rain Man, 30 January 2013 - 01:58 PM.


#3 rigma_one

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Posted 30 January 2013 - 05:07 PM

Thanks for the advice!

I browsed around at a few online shops and forums.  How do I know which cylinder is right for me?

#4 gcw360

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Posted 31 January 2013 - 05:33 PM

 rigma_one, on 30 January 2013 - 05:07 PM, said:

Thanks for the advice!

I browsed around at a few online shops and forums.  How do I know which cylinder is right for me?
Drop in the KWA type 0.5.  It should get you close to 370+.  Then you can go to a longer, perhaps, TBB.  That will get you to about 390 with the proper barrel.

#5 rigma_one

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Posted 31 January 2013 - 06:35 PM

Is it even realistic to set a goal of 450 with at least 23 gram bbs?

#6 niko_gpsy

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Posted 01 February 2013 - 02:43 PM

 rigma_one, on 31 January 2013 - 06:35 PM, said:

Is it even realistic to set a goal of 450 with at least 23 gram bbs?

You may not hit that FPS number exactly but you can get pretty close with an M130/SP120 spring and the proper cylinder for the length of the inner barrel you are running.

#7 Chuck S

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Posted 02 February 2013 - 06:59 AM

Compare the cost of your intended modifications to the cost of a new stock gun shooting the velocity you want.

My rule of thumb is if the modifications exceed 50% of a new gun I get the new gun -- and keep the original too!  In the airsoft world that gives you both CQB and Field guns just by picking up the right one without modifications back and forth.  You have the magazines, BBs, batteries, and charger already for both guns.  If they're both setup the same way there's no operational differences.

-- Chuck

#8 rigma_one

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Posted 02 February 2013 - 10:44 AM

I like your thinking, Chuck.  More value may be found in purchasing a new rifle over tinkering and toying with my current setup back and forth as I play indoors and out.

Thanks all for the advice.

#9 Chuck S

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Posted 02 February 2013 - 03:04 PM

Everyone needs an excuse for another gun!  ;)

-- Chuck





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