Matching Cylinder w/ barrel

krap101 · July 27th, 2007, 04:52

I wanted to get a 590mm tightbore for my gun (with a barrel extension), and i was wondering how i would match it. Are cylinders just ported and unported or do they need to be matched to length? I looked through a couple pages and i couldn't find a straightforward answer.

Guess i was searching the wrong thing, Barrel suck?

Edit: okay from what i've read anything longer than 590mm creates barrel suck? should i just get a 550mm barrel?

surebet · July 27th, 2007, 05:27

40mm won't make an insane difference. What was the original barrel lenght? It's important to provide as much background information (gun manufacturer, model, current setup, etc) as you can with specific questions like these else we can't help you.

http://airsoftcanada.com/showthread.php?t=18038

Read up Madmax' post, And contact Illusion for parts. Between the both of them, you should be ok.

Oh, and if you prefer not opening the mechbox, Illusion also did work on boxes las time I checked.

damage · July 27th, 2007, 06:12

Type 0 Cylinder. Meaning no ports and should be closed type. I use to have this kind of set up which is 590mm(6.03mm) and 600mm(6.02mm) inner barrel with Type 0 Cylinder. No issues.

Styrak · July 27th, 2007, 06:17

Threadjack.
I'm getting a TM AUG and am wondering if just throwing a longer barrel in there would be ok. It has an original 509mm inner barrel, but it has an extended outer barrel.

Cushak · July 27th, 2007, 10:52

http://www.airsoftcanada.com/showthr...t=18038&page=3

#33rd post. In the sticky about "Why match cylinder porting and barrel length? "

Styrak · July 27th, 2007, 17:59

Quote:

Originally Posted by Cushak

http://www.airsoftcanada.com/showthr...t=18038&page=3

#33rd post. In the sticky about "Why match cylinder porting and barrel length? "

That doesn't really tell me anything, but ok.

Cushak · July 27th, 2007, 18:04

Quote:

Originally Posted by Illusion

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

Due to the fact that the A cylinder is good for 451 - 550mm, one can deduce that unless your increasing the barrel to over 550mm, you'll be fine.

Styrak · July 27th, 2007, 18:08

Well, I might. Not sure until I get the gun.

ILLusion · July 27th, 2007, 18:11

Quote:

Originally Posted by Styrak

That doesn't really tell me anything, but ok.

That tells you which cylinder(s) you can use for whatever inner barrel length you're using.

Styrak · July 27th, 2007, 18:50

But not for barrels > 550 mm.

ILLusion · July 27th, 2007, 21:11

How does it not?

Quote:

Originally Posted by ILLusion

KM TN Coated Inner Taper Cylinder for Long AEGs ( AEGS10 ) 400mm - 590mm

Also, as some people have already noted, the Systema Type 0 also works for up to 590mm.

As a side note that I've noticed: it seems to only work up to around M130 or M140 springs. Velocity higher than that may require a Bore Up cylinder kit.

krap101 · July 27th, 2007, 23:51

well my original barrel was 390mm off a BE metal gearbox xm8. i want to add a 195 mm barrel extension.. because imo short silencers are ugly. I'm not totally sure how a xm8 with a silencer would look, since it seem there are absolutely no pics of xm8's with silencers. Ima go have a look rainbow six, since you can put a silencer on an xm8 :P

krap101 · July 28th, 2007, 00:06

That is as close to a picture of a silenced xm8 that i can find, and i had to get it myself

i like it though

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July 27th, 2007, 04:52	#1
krap101 Trader rating Join Date: Jun 2007 Location: Roscoe, IL USA	Matching Cylinder w/ barrel I wanted to get a 590mm tightbore for my gun (with a barrel extension), and i was wondering how i would match it. Are cylinders just ported and unported or do they need to be matched to length? I looked through a couple pages and i couldn't find a straightforward answer. Guess i was searching the wrong thing, Barrel suck? Edit: okay from what i've read anything longer than 590mm creates barrel suck? should i just get a 550mm barrel? Last edited by krap101; July 27th, 2007 at 05:03..

July 27th, 2007, 05:27	#2
surebet Vicious MSPaint Wizard Trader rating Join Date: Aug 2004 Location: Longueuil, Quebec	40mm won't make an insane difference. What was the original barrel lenght? It's important to provide as much background information (gun manufacturer, model, current setup, etc) as you can with specific questions like these else we can't help you. http://airsoftcanada.com/showthread.php?t=18038 Read up Madmax' post, And contact Illusion for parts. Between the both of them, you should be ok. Oh, and if you prefer not opening the mechbox, Illusion also did work on boxes las time I checked. __________________ Annoyingly good with numbers Stop American Censorship

July 27th, 2007, 06:17	#4
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Threadjack. I'm getting a TM AUG and am wondering if just throwing a longer barrel in there would be ok. It has an original 509mm inner barrel, but it has an extended outer barrel. __________________ Airsoft Sales and Repair/Upgrade Services

July 27th, 2007, 06:12	#3
damage Trader rating Join Date: Jan 2005 Location: Port Coquitlam, BC	Type 0 Cylinder. Meaning no ports and should be closed type. I use to have this kind of set up which is 590mm(6.03mm) and 600mm(6.02mm) inner barrel with Type 0 Cylinder. No issues. __________________ Team P.I.M.P. Vancouver BC -Guntech(PM or E-mail only)

July 27th, 2007, 10:52	#5
Cushak Trader rating Join Date: Sep 2005 Location: Saskatoon/Moose Jaw	http://www.airsoftcanada.com/showthr...t=18038&page=3 #33rd post. In the sticky about "Why match cylinder porting and barrel length? "

July 27th, 2007, 18:08	#8
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Well, I might. Not sure until I get the gun. __________________ Airsoft Sales and Repair/Upgrade Services

July 27th, 2007, 18:50	#10
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	But not for barrels > 550 mm. __________________ Airsoft Sales and Repair/Upgrade Services

July 27th, 2007, 23:51	#12
krap101 Trader rating Join Date: Jun 2007 Location: Roscoe, IL USA	well my original barrel was 390mm off a BE metal gearbox xm8. i want to add a 195 mm barrel extension.. because imo short silencers are ugly. I'm not totally sure how a xm8 with a silencer would look, since it seem there are absolutely no pics of xm8's with silencers. Ima go have a look rainbow six, since you can put a silencer on an xm8 :P

July 28th, 2007, 00:06	#13
krap101 Trader rating Join Date: Jun 2007 Location: Roscoe, IL USA	That is as close to a picture of a silenced xm8 that i can find, and i had to get it myself i like it though

Matching Cylinder w/ barrel

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