cylinder to barrel ratio

> a simple guide when upgrading your barrels and cylinders

CYLINDER: (cylinderVolume-to-barrel-ratio) 2 is to 1 (standard)Stock Cylinders:
1. Closed Cylinder = 27.1cc 450mm(min) 580mm(max) barrel length
2. XM Cylinder = "4/5 hole" = 364mm(min) 460mm(max) barrel length
3. M4 Cylinder = "3/4 hole" aka Type-2 17cc - 229mm(min) 430mm(max) barrel length
4. MP5K Cylinder = "mid hole" 9cc 110mm(min) 170mm(max) barrel length

Systema NB Standard and BoreUp Parts:
1. Type-0 Cylinder (closed) fits M16-A1,VN,A2,G3-A4,SG1,SIG550,AUG
2. Type-1 Cylinder (tip hole) for XM177, M4, AK47, AK47S, SIG551
3. Type-2 Cylinder (XM hole) for MP5-A4,A5,SD5,SD6, MC51,SIG552
4. Type-3 Cylinder (M4 "3/4" hole) for MP5 PDW
5. Type-4 Cylinder (MP5K mid hole) for MP5K
*BoreUp Closed 29.4cc = 500mm(min) 600mm(max) barrel length


KM Cylinder Parts:
*Intercept Cylinder 59 barrel length from 450mm to 590mm (Type 0)
*Intercept Cylinder 45 barrel length from 250mm to 450mm (Type 2)
*Intercept Cylinder 25 barrel length from 100mm to 250mm (Mid-hole)

*To avoid confusion, don't mix brand model names, just model equivalence
*TM M733 by stock is closed cylinder (Type 0) -over ratio

RATIO Guide: Standard-Efficient Ratio is 1.5 is to 1
2-2.5 : 1 for springs up to M130 --- 2.5-3.0 : 1 for strong springs M140 -> UP
<needs further research>

BARREL: (inner barrel length)
650mm/25.59in PSG-1 (extended)
595mm/23.42in APS2 OR
589mm/23.18in PSG-1
550mm/21.65in M16A1/VN/A2,AUG (extended)
534mm/21.02in Sig550
509mm/20.03in M16A1/VN/A2,AUG
472mm/18.58in Famas SV/F1
469mm/18.46in G3-A3/A4,SG1
455mm/17.91in AK47,AK47s
444mm/17.48in M60
407mm/16.02in M4A1 M653E2 (extended)
395mm/15.55in APS2 SV
369mm/14.52in HK51
363mm/14.29in M4A1,RIS,SR-16,XM177ED,Sig551
300mm/11.81in M1A1,AKBetaSpetz, M733
285mm/11.22in MC51
247mm/9.72in Car15,P90,G36C, SIG552
245mm/9.64in UZI - 400mm/15.74in (extended)
229mm/9.01in MP5A5/A4/SD5/SD6
170mm/6.69in MP5K-PDW (extended)
141mm/5.55in MP5K-PDW
110mm/4.33in MP5K


> post a reply or pm if you need further explanation
> more power to BAG!!!

sir pano po kung nagpalit ng ID ng barrel. will you consider changing the cylinder type?

>konti lang yung change sa dif ng volume ng barel sir lalo na kapag ID ang pinag uusapan, lalo na yung mga changes from 6.08 to 6.04.

>pero cyempre naman sir pag mga super high end snipe barrels na ng kagaya nung mga gamit mo (hehehe),,, Ü super high end closed cylinder na dba Ü

extended cylinder pa nga ata yung sa yo e???
hehehehe

Huwaw....dati point and shoot lang....scientific na ngayon...

in my case yes...you have to consider alot in upgrading......they call it matching...you have to consoder cylinder specification.if youll notice in the cylinder case it has a certain length of barrel for it.but to obtain maximum efficiency you have to make trial and error, and crono is very important in upgrading...

so what cylinder should i use when i have an mp5k barrel with a 6.01 ID.

>whoa??? 6.01 in a mp5k??? not ideal sir,,, unless you will be using marui or exel precision bbs (or 5.8 bbs), it is not advisable to use 6.01 and 6.02 barrels in automatic aegs,,,

> 6.01 and 6.02 barrels are made for snipe or single shot guns...

> but to answer your question, for a mp5k barrel (w/c can range from 4 to 6 inches), use a type-4 cylinder (mid hole)

dapat hindi navyseal33 tawag sa u.....dapat ernie baron.....
kung walang knowledge walng power aeg mo.....hehehe joke lang sir....its gud we have somebody like u na mahilig mag research.... carry on....keep up d gud work

bodyguard wrote:

dapat hindi navyseal33 tawag sa u.....dapat ernie baron.....
kung walang knowledge walng power aeg mo.....hehehe joke lang sir....its gud we have somebody like u na mahilig mag research.... carry on....keep up d gud work

> nakow, kung walang bodyguard, wala talagang power yung aeg ko

galing nman ni fafi navyseal... ty sa info sir...

navyseal33 wrote:

>whoa??? 6.01 in a mp5k??? not ideal sir,,, unless you will be using marui or exel precision bbs (or 5.8 bbs), it is not advisable to use 6.01 and 6.02 barrels in automatic aegs,,,

> 6.01 and 6.02 barrels are made for snipe or single shot guns...

> but to answer your question, for a mp5k barrel (w/c can range from 4 to 6 inches), use a type-4 cylinder (mid hole)

ginagmit un for pistols. FYI

> ah??? sa pistol sir??? akala ko sa mp5k???
> basta with bore sir, kasi pag 0-type, what happens is naka labas na yung bb sa barrel pero hindi pa umaabot sa full compression yung piston-cylinder mechanism.
> bale yung optimum air pressure hindi na naabutan nung bb while nasa barrel pa cya, lalo na kung naka tight barrel

navyseal33 wrote:

> basta with bore sir, kasi pag 0-type, what happens is naka labas na yung bb sa barrel pero hindi pa umaabot sa full compression yung piston-cylinder mechanism.
> bale yung optimum air pressure hindi na naabutan nung bb while nasa barrel pa cya, lalo na kung naka tight barrel

yup. exactly sir. been doing some gunsmithing since last year para sa mga bayaw ko sa angeles for aegs but never for pistols. pero i've been reading some posts sa mga airsoft sites na pwede daw. hmmm gano ka totoo itech? anyways nice post. very infromative for newbies. keep them coming.

Galing talaga ni Navy Seal! Pwede ka bang makuhang consultant sa shop ko? Kaya lalong dumadami ang BAG members dahil sa mga tulad ninyong very supportive and welcoming sa mga ibang members. Mabuhay kayo!!! (pero patay kayo sa game he he he).

Stealth wrote:

yup. exactly sir. been doing some gunsmithing since last year para sa mga bayaw ko sa angeles for aegs but never for pistols. pero i've been reading some posts sa mga airsoft sites na pwede daw. hmmm gano ka totoo itech? anyways nice post. very infromative for newbies. keep them coming.

sir may ginawa kami project, nag kahoy kami ng 6.03 madbull barrel, and customized it to fit a WA gas blow back pistol.. plus 50 fps ang output.. looking forward to your feedback regarding the pistol na kinabitan nyo ng 6.01 Ü

Tupa wrote:

Galing talaga ni Navy Seal! Pwede ka bang makuhang consultant sa shop ko? Kaya lalong dumadami ang BAG members dahil sa mga tulad ninyong very supportive and welcoming sa mga ibang members. Mabuhay kayo!!! (pero patay kayo sa game he he he).

wow!!! consultant Ü hehehe
> Welcome lahat sa BAG, and any questions willing kami mag bigay ng opinion or suggestions Ü
> simulan na natin ang pagiging consultant, hehe
> speaking of cylinder and tight barrel upgrades :
two of the best tight barrels available in the market right now
(in my opinion) are PROMETHEUS and EdGI
> PROMETHEUS barrels are now on sale at TUPA airsoft
> for EdGI barrels, contact navyseal @ 09272270997

> hahaha!!! sales talk naman ang nangyari, hindi consulatation Ü

ng advertise pa...joke buy na kau...

sir navyseal, pwde po bang palitan ng m16 TB ung M4carbine? with close cylinder po ba?
lalakas din po ba fps nun?
lalayo ba ung range nia? hmmm?

kc_baghawi_23 wrote:

sir navyseal, pwde po bang palitan ng m16 TB ung M4carbine? with close cylinder po ba?
lalakas din po ba fps nun?
lalayo ba ung range nia? hmmm?

sir baghawi i will answer ur question...kung magpapalit ka ng barrel make sure d lilitaw ung barrel mo para d pangit tignan at dapat close cylinder para wala singaw. another is dnt xpect ur fps to increase pag all stock internals mo...believe me napadas kon dayta...

sir body.. panu po kng lvl 1 upgrade lng? tataas pb fps nun?
kc last fps nia last last sunday 410..

kc_baghawi_23 wrote:

sir body.. panu po kng lvl 1 upgrade lng? tataas pb fps nun?
kc last fps nia last last sunday 410..

sir with regard to upgrades i dont believe on levels of upgrades better pag minsanan ang upgrade at gastos para makita mo ang pagbabago ng aeg mo and ung lakas nya kung ano target mo na fps.....

bodyguard wrote:

kc_baghawi_23 wrote:

sir body.. panu po kng lvl 1 upgrade lng? tataas pb fps nun?
kc last fps nia last last sunday 410..

sir with regard to upgrades i dont believe on levels of upgrades better pag minsanan ang upgrade at gastos para makita mo ang pagbabago ng aeg mo and ung lakas nya kung ano target mo na fps.....

Kung kaya mong gumastos ng malaki.. kaya mung pataasin fps hanggang gusto mo. Kung gusto mo ng mataas na fps.. gastusan mo. awts!

tignan mo si Bodyguard pistol lang nya 400fps na.. hehehe!



*AYU-YAH!* dats d trut & nating but d trut! OT na toh! Sori!

Sir Baghawi, sa 410 FPS.....wag ka muna mag upgrade ng gearbox. Mag tight barrel ka ng 6.03 or 6.04....+ 40 to 50 FPS na yun....

thnx po sa mga payo nio mga sir... salamat po khit OT na 2...