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Discussion Starter · #1 ·
Hi all

Im new to sniping and sniper airsoft rifles but I have learned a lot in the past few days! :) First it looked crazy complicated to understand which parts Ill need to upgrade a tanaka m700 but after 3-4 days of focused google ing the picture is starting to clear.

So anyways let me asses what I have learned and please let me know if I got it correct:

Chamber:

Original(design) or KA. pretty straight forward what I don't know is why the VSR barrels are so good. (my lack of experience in the field). I would appreciate it if someone could recommend one over the other.

Bolt parts: G&G power pack is what I have found. I don't know exactly how the weapon functions but if I'm guessing correct than its like this:

When I cycle the bolt the plunger and the hammer thing come to a stressed position which is released with the trigger through the force of the striker spring. The hammer than hits a valve release on the mag which in turn releases gas into the system. If I'm correct this upgraded is needed if you raise the pressure above (external air rig) the factory default. Please clarify me if I got something wrong.

G&G power bolt: more of a durability upgrade, as far as I have heard it does not help performance and quiet pricey. Let me know if this is also a must to complement the G&G power pack.


The gas rout connector spring: pushes the gas rout connector stronger against the inlet part at the gun?

KA upgrade nozzle: If I'm right this is a must for post-ban Tanakas to get them to a reasonable fps. Please let me know if this is not the piece that causes the fps restriction.


TBB: This depends on the hop up chamber and raises the question of VSR or standard. I have also saw PDI 6.05mm barrel specifically for the m700 but its for a whooping 371 dollars, why? Is this a VSR or standard?

I'm also planing on building an external air rig but ill leave that for another time.

Thanks in advance for your time

EDIT: I forgot to ask to please let me know if I left some parts out or where I could read a comprehensive summary of a tanaka upgrade.

olipoli
 

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Start here, it doesn't apply directly to what your asking but you should get some good info.

I would suggest you to this thread here: http://www.airsoftforum.com/board/Ultimate-Parts-Guide-ge-t194133.html
It has loads of good information, and don't worry if you scroll down it has been put through Google translate.

As for the various chambers, The KA chamber is made so that VSR cut barrels can be put into the gun, and I believe that the other two chambers are just made for durability and do not come with an adapter for VSR barrels, but I am not absolutely sure. The reason for the G&G and creation hop up set, is that the plastic hop up housing (Part #91) is very easily broken if the screw securing the outer barrel is over tightened, which before those parts you had to buy the whole G&G heavy outer barrel kit to get part #91.

The translation is a little hard to comprehend at times in that guide so here is my understanding of these parts.

Many of the G&G parts are just for durability since they are made of stronger material than the stock pieces, but in some instances they have been reported to increase consistency, and sometimes increase velocity. But as you will see in the parts guide they can caused increased wear on other stock pieces. The striker spring is a must have if you are going to HPA. It's stronger than the stock spring and allows the valve to open completely at higher pressures. Without it an HPA setup can't really be fully utilized unless you are running it at lower velocities. The G&G gas route spring replaces the spring that pushes the valve on the magazine up against the gun when you load in the mag, this gives you a better seal and a little bit more consistency. The G&G rubber kit comes with three rubber pieces, but if you are switching to VSR style hop up only one of them can be used, the one that fits into the bolt. The rubber is a higher quality material and gives you a better seal and a bit more consistency. The G&G plunger replaces the stock plunger arm and impact plate, reducing the overall mechanism by one part, and has been said in some instances to create more consistent FPS. The valve knocker just gives you better durability as does the steel cocking piece and bolt handle. According to the writer of this guide, the G&G power-bolt can give you better consistency IF you have ALL other G&G parts, otherwise it causes large amounts of wear and can ruin the gun.

So you can decide whether or not you need them, personally I would get the G&G power pack which has many of these parts and the G&G gas route spring. The rest of the parts are said to only be needed when they break or get too worn. That barrel conversion and a new barrel would be a great investment of course.

Hope this helps.
The VSR barrels are more available and at a higher demand so there fore cheaper. Almost no one makes Tanaka M700 barrels but PSG-1 barrels can fit it if you don't want to convert but then you don't get the large market of VSR buckings either. Just note, only the Tanaka needs the conversion, the KJW can take VSR barrels and buckings stock.

The nozzle doesn't "limit the fps" I believe there's a little red piece somewhere in the gun that has to be taken out but I am not sure. That being said, although it wasn't designed to restrict FPS it would be a good idea to get the extended version. The problem is that the nozzle does not go far enough into the chamber to get a proper seal which the extended nozzle fixes. This issue is not only on the pre-ban but also on the newer versions and clones I believe. On the KJW M700 people have reported just pulling the nozzle out about a 1/16 of an inch can extend it far enough into the hop up and keeps it seated in a secure position.

The barrel you saw is for the Tanaka M700 hop up system without the VSR conversion kit. Off the top of my head I remember the stock barrel length being 649mm which is a pretty big piece of metal. PDI also makes their barrels out of stainless steal which drives the price up quite a bit, and again I'm guessing it's just in a lower demand at the current time.

As for the air rig, just to save some time take a look at this thread if you haven't already: http://www.airsoftforum.com/board/Constructing-Air-Rig-56-t127562.html
By far one of the best guides on the web, and the writer invites questions which you will probably have a lot of that you can't find anywhere else.

Good luck!

EDIT: You were correct, the restrictor I mentioned is actually in the nozzle I apologize for any confusion that may have caused. What I said above though does still apply, the nozzle is a little bit too short.
 

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Discussion Starter · #3 ·
Thank you very much for taking the time to answer!

The bit you quoted started me to he right direction initially, thats where I learnt most of what I know. I have also google translated the German stuff but it was quiet messy.

Thanks for clarifying the VSR question I saw a tutorial about converting the tanaka chamber to the vsr but it was in French... I also google translated it but with the same results as with the German.

Generally I love tinkering with my gun but I have to admit I have little experience with such works. Do you think I could be able to do the whole upgrade process including the power bolt and chamber replacement with minimal experience?

Oh and thanks for the link on the external air rig.
 

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The bolt is easy enough but I would suggest you take caution with the bolt. In case you didn't see: If you install the G&G power bolt without the other G&G parts your rifle isn't going to last long. Also if you want to get the conversion kit it can be quite hard to remove the nozzle as the writer of the parts guide stated on this thread http://www.airsoftforum.com/board/Removing-GandG-Powerbolt-No-t197959.html

You shouldn't have much of a problem with the conversion but a guide on how to install it can be found here so you can decide for your self. http://www.airsoftireland.com/forums/index.php?showtopic=10596
 

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Discussion Starter · #6 ·
Back again!

Im not sure if anybody is concerned with this but after all I took a quick turn and decided to go with the g&g g96. The thing that got me with this gun is the price and that all tanak upgrade parts are already installed in the gun. There are relatively few reviews about this gun so once I have it and tested it Im hoping to do the review on it. In the meantime anybody who has fresh info on this gun please let me know.

thanks
 
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