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Modify Hopup chamber?

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Old April 23rd, 2011, 19:12   #31
Ace of Spades©
 
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Join Date: Jan 2006
Location: Oromocto
I have an ARS rubber and Madbull V2 407mm barrel and they work perfectly well together.
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Old April 23rd, 2011, 19:37   #32
Korunos
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Join Date: Nov 2010
Location: Mississauga, Ontario
I got the modify hop up and a Madbull V2 6.03 inner barrel. Also got a Prommy soft bucking. Using .25's I chronied at 335 fps. Put the stock barrel and hop up in and still chrony at 335 fps. I could not believe that I didn't at least get some type of increase. Previous tests had the gun shooting 380-385 fps on .20's.I think I am gonna have to get my gun doc to look at it.
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Old May 4th, 2011, 13:15   #33
Rabbit
formerly FrankieCees, Remylebeau
 
Join Date: May 2010
Location: Hamilton
Brought the modify chamber out to a recent game and found that I was having a lot of trouble with it.

It was fairly consistent at first, not as much range as my stock CA hopup chamber but things began to get strange as time passed.

BBs were flying out straight however I would get the occasional 3 in a row where they would exit the barrel and fly down diagonal to the right.

Im using a Madbull V2 6.03 along with a guarder clear, the arm I was using was also the one that has the built in nub.

any suggestions?

.25g bbs aswell.
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Old May 4th, 2011, 13:25   #34
coach
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Join Date: Mar 2008
Location: T dot
I found that the guarder rubbers don't fit properly on the v2 barrels. They are a bit loose and probably are the cause of your inconsistency.

I had a similar setup but with a one piece metal hopup and initially it was spot on but as the rubber wore in, the inconsistencies became more and more to the point the feed lips tore.

Try the madbull rubbers. I had the blue in but have recently switch to the shark and it's working pretty good.
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Old May 4th, 2011, 13:34   #35
Rabbit
formerly FrankieCees, Remylebeau
 
Join Date: May 2010
Location: Hamilton
The blue is noted that its for 350fps or lower im going to assume with .20s

My cxp is shooting around 370fps and the m4 around 330fps, both of which have guarder clears & v2s.

Do you suggest going with the madbull blue? they come in 2's anyways on airsoftparts.ca
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Old May 4th, 2011, 13:56   #36
VooDooPeteK
 
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Join Date: Feb 2010
Location: Thorold, Ont
I would say get the red shark bucking but they are sold out right now
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Old May 7th, 2011, 20:43   #37
THe_Silencer
 
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Join Date: Jul 2009
Location: Hamilton,ON
Try the regular arm w/o the built in nub. I've always had much success with the Systema hop up rubbers.
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Old April 18th, 2014, 10:40   #38
Chromey
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Join Date: Jul 2013
Location: Acton, On
Old thread Revived.

Just installed the Modify Hop-up Chamber With a Lonex 70 Bucking.

The Hop-Up Chamber is Very well made, and Fit very well in my G&G GR16.

It is VERY touchy, Very little movement needed to adjust the hop-up.
I used the rear spacer for testing, But lost 15 FPS.
When removed I got my 15 FPS back, PLUS another 10 FPS

Ill be testing range this weekend.

So far Im impressed with this unit.
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