Quick Question - Stock Barrel Length

Shutter · August 23rd, 2006, 02:48

This is a really quick question. The length of a stock TM M4A1 inner barrel is?? I'm just looking for a tightbore and I see both 363mm and 407mm barrels listed everywhere.

If you're still with me, heres an extension question. Assuming 363mm is stock, if I increase the length to 469mm(I'm putting a silencer on for looks, which is 120mm long, and if I've got the extra length, I might as well use it), I'd probably need a new cylinder. Any gun gods be able to tell me what cyclinder I'd have to get?

porry · August 23rd, 2006, 03:42

the same cylinder thats in the m16, i believe its called a long cylinder.

max barrel length for m4 cylinder is 430mm

ILLusion · August 23rd, 2006, 04:12

Depending on the brand of cylinder you're looking for, you may want to look in to an AK47 cylinder, which is in between an M16 and M4 length.

Systema calls it a "Type 1" cylinder.

Shutter · August 23rd, 2006, 16:37

Thats an idea. Its quite the mess of parts and parts that require other parts and brands and such though. I was hoping to pick up a few parts on Jugglez next UNC order, but damn. Cylinder, cylinder head, pistons, piston heads. *Shakes fist*

Anything you'd recommend in terms of brand and overall whats needed for this to work out. For example, if I look at your Systema Type 1 cylinder, do I need a new cylinder head and/or piston/piston head?

Heres what I'm working with: M4A1, mild spring, and spring guide w/bearing, metal bushings. otherwise stock. I'd like to change the inner barrel to 469mm. What do I NEED, and what may I WANT.

porry · August 23rd, 2006, 16:43

a tightbore barrel if your upgrading the barrel. All you should need is that cylinder illusion suggested. type 1 cylinder, made by systema. As far as i know systema is one of the higher end brands when it comes to parts. You may want to get a polycarb piston and piston head if bugget allows.

Shutter · August 23rd, 2006, 16:51

I have my eye on a Prometheus 6.03 469mm tightbore that unC as in stock. My budget isn't that much of an issue. I'd rather spend a bit more in the first place and have something that works instead of playing catch up later if something breaks.

So, type 1 cylinder, and a poly/silicone piston/piston head. what about cylinder head?

porry · August 23rd, 2006, 17:01

hmm, clinder head, you can upgrade to a metal one if you want.

Maybe look at a cylinder set. Comes with cylinder, cylinder head and a poly carb piston head

Name ZS-03-13
Description Systema N-B Cylinder Set For AK
Suitable For:AK47/47S ...
Price US$ 53.60 Weight 0g

and the poly carb piston is

Name ZS-05-01
Description Systema Poly Carbonate Piston
Suitable For Gearbox Version 2 & 3 ...
Price US$ 22.50 Weight 0g

Upgrading gets expensive. You dont even need to upgrade the piston or piston head, but its always an option as it is better than stock

Shutter · August 23rd, 2006, 17:34

That kit is a good idea actually. Thanks for the heads up. It looks like I'll be getting that kit and piston, new barrel. Thanks for all the help guys!

porry · August 23rd, 2006, 17:44

no problem. First time upgrades can always be confusing, therse so many pistons and other parts to choose from. Hope all goes well in your upgrades, also one more thing is you may want to get some cylinder grease, systema makes it, thats it that i can really think you may need.

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August 23rd, 2006, 02:48	#1
Shutter Previously known as Volatile Psychosis Trader rating Join Date: Jun 2005 Location: Winnipeg, MB	Quick Question - Stock Barrel Length This is a really quick question. The length of a stock TM M4A1 inner barrel is?? I'm just looking for a tightbore and I see both 363mm and 407mm barrels listed everywhere. If you're still with me, heres an extension question. Assuming 363mm is stock, if I increase the length to 469mm(I'm putting a silencer on for looks, which is 120mm long, and if I've got the extra length, I might as well use it), I'd probably need a new cylinder. Any gun gods be able to tell me what cyclinder I'd have to get? __________________ Life is cheap, film is cheaper.

August 23rd, 2006, 04:12	#3
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	Depending on the brand of cylinder you're looking for, you may want to look in to an AK47 cylinder, which is in between an M16 and M4 length. Systema calls it a "Type 1" cylinder. __________________ *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

August 23rd, 2006, 16:37	#4
Shutter Previously known as Volatile Psychosis Trader rating Join Date: Jun 2005 Location: Winnipeg, MB	Thats an idea. Its quite the mess of parts and parts that require other parts and brands and such though. I was hoping to pick up a few parts on Jugglez next UNC order, but damn. Cylinder, cylinder head, pistons, piston heads. Shakes fist Anything you'd recommend in terms of brand and overall whats needed for this to work out. For example, if I look at your Systema Type 1 cylinder, do I need a new cylinder head and/or piston/piston head? Heres what I'm working with: M4A1, mild spring, and spring guide w/bearing, metal bushings. otherwise stock. I'd like to change the inner barrel to 469mm. What do I NEED, and what may I WANT. __________________ Life is cheap, film is cheaper.

August 23rd, 2006, 03:42	#2
porry Banned Trader rating Join Date: Mar 2004 Location: outside Edmonton	the same cylinder thats in the m16, i believe its called a long cylinder. max barrel length for m4 cylinder is 430mm

August 23rd, 2006, 16:43	#5
porry Banned Trader rating Join Date: Mar 2004 Location: outside Edmonton	a tightbore barrel if your upgrading the barrel. All you should need is that cylinder illusion suggested. type 1 cylinder, made by systema. As far as i know systema is one of the higher end brands when it comes to parts. You may want to get a polycarb piston and piston head if bugget allows.

August 23rd, 2006, 16:51	#6
Shutter Previously known as Volatile Psychosis Trader rating Join Date: Jun 2005 Location: Winnipeg, MB	I have my eye on a Prometheus 6.03 469mm tightbore that unC as in stock. My budget isn't that much of an issue. I'd rather spend a bit more in the first place and have something that works instead of playing catch up later if something breaks. So, type 1 cylinder, and a poly/silicone piston/piston head. what about cylinder head? __________________ Life is cheap, film is cheaper.

August 23rd, 2006, 17:01	#7
porry Banned Trader rating Join Date: Mar 2004 Location: outside Edmonton	hmm, clinder head, you can upgrade to a metal one if you want. Maybe look at a cylinder set. Comes with cylinder, cylinder head and a poly carb piston head Name ZS-03-13 Description Systema N-B Cylinder Set For AK Suitable For:AK47/47S ... Price US$ 53.60 Weight 0g and the poly carb piston is Name ZS-05-01 Description Systema Poly Carbonate Piston Suitable For Gearbox Version 2 & 3 ... Price US$ 22.50 Weight 0g Upgrading gets expensive. You dont even need to upgrade the piston or piston head, but its always an option as it is better than stock

August 23rd, 2006, 17:34	#8
Shutter Previously known as Volatile Psychosis Trader rating Join Date: Jun 2005 Location: Winnipeg, MB	That kit is a good idea actually. Thanks for the heads up. It looks like I'll be getting that kit and piston, new barrel. Thanks for all the help guys! __________________ Life is cheap, film is cheaper.

August 23rd, 2006, 17:44	#9
porry Banned Trader rating Join Date: Mar 2004 Location: outside Edmonton	no problem. First time upgrades can always be confusing, therse so many pistons and other parts to choose from. Hope all goes well in your upgrades, also one more thing is you may want to get some cylinder grease, systema makes it, thats it that i can really think you may need.

Quick Question - Stock Barrel Length

Upgrades & Modifications