Question about cylinder sets.

milehigh · January 17th, 2007, 23:32

Hello all,

I have a TM G36c. I bought an m4 length 6.04 barrel, which is 116mm longer than the stock barrel. I see in other threads that you are supposed to change cylinders when you lengthen your barrel. What should I get? Will an M4 cylinder set fit in a version 3 gear box?

My choice of sets are right here...
http://stores.ebay.com/eHobby-Asia-A...QQftidZ2QQtZkm

Trader rating · January 18th, 2007, 02:45

A very good read
http://www.airsoftcanada.com/showthread.php?t=18038

Quote:

Originally Posted by ILLusion

Okay, since I need a hardcore break from work, I've compiled the list:

Guarder Cylinder ( GE-03-01 ) G3 / M16A2 / AK
Guarder Cylinder ( GE-03-02 ) M4A1 / SR16
Guarder Cylinder ( GE-03-03 ) MP5A Series and SD Series
Guarder Cylinder ( GE-03-04 ) MP5K / PDW

Systema N-B Cylinder Type-0 ( ZS-04-16 ) M16A1 / VN / A2 / G3 / SG550 / AUG
Systema N-B Cylinder Type-1 ( ZS-04-17 ) AK47 / XM177 / SG551
Systema N-B Cylinder Type-2 ( ZS-04-18 ) MP5A4 / A5 / SD5 / SD6 / MC51
Systema N-B Cylinder Type-3 ( ZS-04-19 ) PDW
Systema N-B Cylinder Type-4 ( ZS-04-20 ) MP5K

KM TN Coated Inner Taper Cylinder for Long AEGs ( AEGS10 ) 400mm - 590mm
KM TN Coated Inner Taper Cylinder for Middle AEGs ( AEGS09 ) 200mm - 400mm
KM TN Coated Inner Taper Cylinder for Shorty AEGs ( AEGS08 ) <200mm

Prometheus Stainless Hard Cylinder ( A ) 451 - 550mm
Prometheus Stainless Hard Cylinder ( B ) 401 - 450mm
Prometheus Stainless Hard Cylinder ( C ) 301 - 400mm
Prometheus Stainless Hard Cylinder ( D ) 251 - 300mm
Prometheus Stainless Hard Cylinder ( E ) 201 - 250mm
Prometheus Stainless Hard Cylinder ( F ) 110 - 200mm

Not all guns are listed on there (especially for the brands which go by gun series and not inner barrel length), but you can derive which cylinder you want to use based on how Tokyo Marui uses same cylinders across different guns.

Full - AK47 / AK47S / M16A1 / M16A2 / M16VN / Sig550 / G3A3 / G3A4 / G3-SG1 / Steyr AUG
1/3 - G36C / P90 / P90 TR / M1A1 Thompson / Sig551 / Sig552 / M4A1 / M4A1 RIS / M4 S-System / SR16 / XM133 / CAR15 / M733 Commando
3/5 - MC51 / G3 SAS / AK Beita Spetsnaz / MP5A4 / MP5A5 / MP5 RAS / MP5SD5 / MP5SD6 / MP5-J
1/2 - MP5K / PDW
^^ The numbers I used here indicate the placement of the port on the cylinder.

If anybody else knows of any other Marui AEGs which use version 2, 3 & 6 gearbox cylinders that aren't on that list and knows which category it goes in, let me know so that I can compile it to the list.

M14 and PSG-1 cylinders are unique to their gearbox. I don't know about Famas and Uzi. Anybody know?

milehigh · January 18th, 2007, 03:50

Thanks for bringing that one up. It looks like the G36C and M4 have the same porting.

Are version 2 cylinder sets compatible with version 3 gear boxes?

ILLusion · January 18th, 2007, 04:57

Quote:

Originally Posted by milehigh

Thanks for bringing that one up. It looks like the G36C and M4 have the same porting.

Are version 2 cylinder sets compatible with version 3 gear boxes?

Yes.

Version 1, 2, 3, 5, 6, and 8 gearboxes use interchangeable cylinders.

Version 4 and version 7 use unique cylinders that can not be swapped with any other gearbox design.

milehigh · January 18th, 2007, 20:43

Thanks. Can anyone tell me the difference between duracon and polycarbonate piston heads?

Also, has anyone used ballbearing spring guides and/or ballbearing piston heads? I can't think of any need for both of them, but is one better than the other?

ILLusion · January 20th, 2007, 06:08

I believe "Duracon" is Systema's name for a silicon type polycarbonate material.

"Polycarbonate" is simply the industrial term for "plastic".

I use both ball bearing spring guides and piston heads extensively, as do many other users. It relieves the twisting tension of the spring during it's compression stage. On top of that, the added height of it adds a higher preload to the spring. The result of these two forces leads to a higher velocity consistency, as well as a higher muzzle velocity.

joaz · January 20th, 2007, 06:28

Quote:

Originally Posted by ILLusion

I believe "Duracon" is Systema's name for a silicon type polycarbonate material.

Duracon is the brand name of a Polyoxymethylene (POM) plastic.

milehigh · January 20th, 2007, 14:42

Thanks a lot for the help guys. ILLusion, all your info is superb. I was thinking of going a bit overboard in buying mech box internals, but after a lot of reading I decided the simplest and most effective way to upgrade. I ordered a systema ballbearing spring guide, m120s spring, and a KA tappet plate (preventative maintenance).

On a side note, during my researching I noticed that the port on the m4 cylinder is just a tad closer to the back than the g36c cylinder. I figured it's not a huge deal because the 6.04 barrel should compensate a little.

The Saint · January 20th, 2007, 14:59

milehigh, you should also replace your stock bushing with metal (non-ball bearing) ones, especially since you're going with a M120S. You'll probably need new shims, too, since not all bushings are the same dimension and changing them means reshimming. Furthermore, your stock gear will suffer a significantly reduced lifespan pulling something like a M120S. Finally, you'll want to get either 1200mah+ and/or 9.6v minis to properly pull that spring.

Rough rule of thumb: http://arniesairsoft.co.uk/?filnavn=...1c/springs.htm

milehigh · January 20th, 2007, 16:21

I forgot to mention I already have metal bushings. I do also have an intellect 8.4 1400 mini battery. Would this work well?

If not, I have a G&P 2200 stick battery that will fit in the G36k handguard if it's reconfigured.

The Saint · January 20th, 2007, 16:24

No problem with those batteries. Although I'm still concerned about pulling such a powerful spring on stock gears.

milehigh · January 20th, 2007, 16:34

I few people I know have been running pdi 170% springs for quite some time without any problems with stock gears.

There is a set of systema metal gears on ebay i am looking at though..

The Saint · January 20th, 2007, 16:38

Yeah, you can always worry about the gears when they do wear out.

milehigh · January 20th, 2007, 16:47

True. Once a week gaming for me (not including winter months), combined with me being a conservative shooter will probably allow my gears to go for a while. Thanks for the help saint.

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January 17th, 2007, 23:32	#1
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	Question about cylinder sets. Hello all, I have a TM G36c. I bought an m4 length 6.04 barrel, which is 116mm longer than the stock barrel. I see in other threads that you are supposed to change cylinders when you lengthen your barrel. What should I get? Will an M4 cylinder set fit in a version 3 gear box? My choice of sets are right here... http://stores.ebay.com/eHobby-Asia-A...QQftidZ2QQtZkm

January 20th, 2007, 06:08	#6
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	I believe "Duracon" is Systema's name for a silicon type polycarbonate material. "Polycarbonate" is simply the industrial term for "plastic". I use both ball bearing spring guides and piston heads extensively, as do many other users. It relieves the twisting tension of the spring during it's compression stage. On top of that, the added height of it adds a higher preload to the spring. The result of these two forces leads to a higher velocity consistency, as well as a higher muzzle velocity. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

January 20th, 2007, 14:59	#9
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	milehigh, you should also replace your stock bushing with metal (non-ball bearing) ones, especially since you're going with a M120S. You'll probably need new shims, too, since not all bushings are the same dimension and changing them means reshimming. Furthermore, your stock gear will suffer a significantly reduced lifespan pulling something like a M120S. Finally, you'll want to get either 1200mah+ and/or 9.6v minis to properly pull that spring. Rough rule of thumb: http://arniesairsoft.co.uk/?filnavn=...1c/springs.htm __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

January 18th, 2007, 03:50	#3
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	Thanks for bringing that one up. It looks like the G36C and M4 have the same porting. Are version 2 cylinder sets compatible with version 3 gear boxes?

January 18th, 2007, 20:43	#5
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	Thanks. Can anyone tell me the difference between duracon and polycarbonate piston heads? Also, has anyone used ballbearing spring guides and/or ballbearing piston heads? I can't think of any need for both of them, but is one better than the other?

January 20th, 2007, 14:42	#8
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	Thanks a lot for the help guys. ILLusion, all your info is superb. I was thinking of going a bit overboard in buying mech box internals, but after a lot of reading I decided the simplest and most effective way to upgrade. I ordered a systema ballbearing spring guide, m120s spring, and a KA tappet plate (preventative maintenance). On a side note, during my researching I noticed that the port on the m4 cylinder is just a tad closer to the back than the g36c cylinder. I figured it's not a huge deal because the 6.04 barrel should compensate a little.

January 20th, 2007, 16:21	#10
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	I forgot to mention I already have metal bushings. I do also have an intellect 8.4 1400 mini battery. Would this work well? If not, I have a G&P 2200 stick battery that will fit in the G36k handguard if it's reconfigured.

January 20th, 2007, 16:24	#11
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	No problem with those batteries. Although I'm still concerned about pulling such a powerful spring on stock gears. __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

January 20th, 2007, 16:34	#12
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	I few people I know have been running pdi 170% springs for quite some time without any problems with stock gears. There is a set of systema metal gears on ebay i am looking at though..

January 20th, 2007, 16:38	#13
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	Yeah, you can always worry about the gears when they do wear out. __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

January 20th, 2007, 16:47	#14
milehigh Trader rating Join Date: Dec 2006 Location: Victoria	True. Once a week gaming for me (not including winter months), combined with me being a conservative shooter will probably allow my gears to go for a while. Thanks for the help saint.

Question about cylinder sets.

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