ICS Mechbox

Lerch · March 27th, 2008, 05:49

I'm doing some info gathering here for my next planned project. I want to build an M4A1 from scratch with the ICS mechbox as the base...

Well, I couldn't remember for the life of me whether the ICS mechbox required specific internals or if I could use regular (ie. Systema) V2 parts?
Also, similar question for the rest of the metal body. Do I need any specific parts or will most other brands fit along with it?

Any useful advice is also appreciated as I'm still in the planning stages.

Ibby · March 27th, 2008, 07:39

The ICS split mechbox is for the most part a V2, but there are some special components in it like the anti-reverse latch. A standard V2 anti reverse latch will fit in it, but you will lose the functionality of the forward assist to decock the spring. Also the mechbox shell itself has dimensions similar to a reinforced V2 mechbox. You'll have a bit of a tough time making it fit in a non ICS metal body. The hopup is similar to a standard unit, but it'll take some modding to either get the stock one to fit, or to get another brand like Systema to fit.

Dynamo · March 27th, 2008, 12:51

the ICS V2 split gearbox is a few mm longer towards the back then a normal TM V2 gearbox. the ICS M4's reciver is also slightly longer to fit the gearbox.
i have yet to find a TM compatible reciver that will fit the ICS gearbox.

Lerch · March 27th, 2008, 14:40

Good to know, thanks guys

beach_boy · March 27th, 2008, 14:47

Also the bushings sizes are a little different. Aftermarket bushings will fit, but you will have to squeeze them in. If you use ICS metal bushings they will only fit ICS gears. So if you want to take the time to aling the aftermarket ones just perfect you can use other gears.

Also try to pick up an ICS pistol grip, as it sits at a slightly different angle. There is a mod out there to fit a G27 grip but it will require some dremel work.

The Saint · March 27th, 2008, 14:54

If the goal is to have a mechbox with quick spring change capability, try looking into the STAR version 2 mechbox. It's not a split mechbox design, but it does have quick spring change.

LyquidFyre · March 27th, 2008, 21:45

Quote:

Originally Posted by beach_boy

Also the bushings sizes are a little different. Aftermarket bushings will fit, but you will have to squeeze them in. If you use ICS metal bushings they will only fit ICS gears. So if you want to take the time to aling the aftermarket ones just perfect you can use other gears.

Also try to pick up an ICS pistol grip, as it sits at a slightly different angle. There is a mod out there to fit a G27 grip but it will require some dremel work.

So if I get aftermarket 6mm bushings I won't be able to use my stock ICS gears anymore?

beach_boy · March 27th, 2008, 22:05

No you should be able to, as the ICS gears are a tab smaller than the TM ones. I suggest using vice grips to put your bushings in. It will shave a bit of the metal off of the gearbox and if done in a hurry it can screw up your gears.

The ICS bushings are both smaller in diameter, and the inside of the bushings are slightly smaller. Does that make sense?

LyquidFyre · March 27th, 2008, 22:41

Gotcha. So the ICS gears will sit a bit loose in the aftermarket bushings then? Hmm I don't like the sound of that either.

beach_boy · March 27th, 2008, 23:34

Yup, you got it. I would suggest getting other gears, as ICS gears suck, but then again, if you mess up aligning your gears you'll need a new lower gearbox

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March 27th, 2008, 05:49	#1
Lerch * AV Status REVOKED * Trader rating Join Date: Feb 2003 Location: CFB Shilo, MB	ICS Mechbox I'm doing some info gathering here for my next planned project. I want to build an M4A1 from scratch with the ICS mechbox as the base... Well, I couldn't remember for the life of me whether the ICS mechbox required specific internals or if I could use regular (ie. Systema) V2 parts? Also, similar question for the rest of the metal body. Do I need any specific parts or will most other brands fit along with it? Any useful advice is also appreciated as I'm still in the planning stages. __________________

March 27th, 2008, 07:39	#2
Ibby Trader rating Join Date: Aug 2003 Location: Victoria/Kingston	The ICS split mechbox is for the most part a V2, but there are some special components in it like the anti-reverse latch. A standard V2 anti reverse latch will fit in it, but you will lose the functionality of the forward assist to decock the spring. Also the mechbox shell itself has dimensions similar to a reinforced V2 mechbox. You'll have a bit of a tough time making it fit in a non ICS metal body. The hopup is similar to a standard unit, but it'll take some modding to either get the stock one to fit, or to get another brand like Systema to fit. __________________ "Anyone with a name like Amanishourbariki should give a few letters to the poor Ng family." - Snarfangel, Fark.com

March 27th, 2008, 12:51	#3
Dynamo Harvester of Noobs' Sorrow Trader rating Join Date: Oct 2003 Location: T̆͒ͥ̓̿̅̈́̐͊̿͗̐̾̃͐ͧ&#8	the ICS V2 split gearbox is a few mm longer towards the back then a normal TM V2 gearbox. the ICS M4's reciver is also slightly longer to fit the gearbox. i have yet to find a TM compatible reciver that will fit the ICS gearbox. __________________ Weapons Technician / Gunsmith Don't look at me, I don't know, lol ¯\(°_o)/¯.

March 27th, 2008, 14:40	#4
Lerch * AV Status REVOKED * Trader rating Join Date: Feb 2003 Location: CFB Shilo, MB	Good to know, thanks guys __________________

March 27th, 2008, 14:47	#5
beach_boy Trader rating Join Date: Jan 2005 Location: Prince George, BC	Also the bushings sizes are a little different. Aftermarket bushings will fit, but you will have to squeeze them in. If you use ICS metal bushings they will only fit ICS gears. So if you want to take the time to aling the aftermarket ones just perfect you can use other gears. Also try to pick up an ICS pistol grip, as it sits at a slightly different angle. There is a mod out there to fit a G27 grip but it will require some dremel work. __________________ We'll do it like the Italian Job!

March 27th, 2008, 14:54	#6
The Saint Trader rating Join Date: Jan 2005 Location: Quebec	If the goal is to have a mechbox with quick spring change capability, try looking into the STAR version 2 mechbox. It's not a split mechbox design, but it does have quick spring change. __________________ "The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."

March 27th, 2008, 22:05	#8
beach_boy Trader rating Join Date: Jan 2005 Location: Prince George, BC	No you should be able to, as the ICS gears are a tab smaller than the TM ones. I suggest using vice grips to put your bushings in. It will shave a bit of the metal off of the gearbox and if done in a hurry it can screw up your gears. The ICS bushings are both smaller in diameter, and the inside of the bushings are slightly smaller. Does that make sense? __________________ We'll do it like the Italian Job!

March 27th, 2008, 22:41	#9
LyquidFyre Trader rating Join Date: Nov 2005 Location: Southern Ontario/GTA	Gotcha. So the ICS gears will sit a bit loose in the aftermarket bushings then? Hmm I don't like the sound of that either. __________________ Various BB throwers

March 27th, 2008, 23:34	#10
beach_boy Trader rating Join Date: Jan 2005 Location: Prince George, BC	Yup, you got it. I would suggest getting other gears, as ICS gears suck, but then again, if you mess up aligning your gears you'll need a new lower gearbox __________________ We'll do it like the Italian Job!

ICS Mechbox

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