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What exactly is the ns2 system?


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#1 drewroud

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Posted 07 January 2013 - 01:53 PM

Kinda new to kwa / ksc guns, as I have been running marui's and clones. Couldn't find ns2 in the search bar.

Basically, what are the properties and advantages of the ns2 system, and how does it differ from the ns1 and marui design?

I see that kwa guns have a flat type magazine gasket, which I have found give better gas efficency, but other than that I do not know of the physics behind this system?

Care to explain anyone? Thanks

#2 kwaispro727

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Posted 07 January 2013 - 04:14 PM

I believe the 2 stands for there being chambers where the gas is stored.  Or that may only be the LM4 magazines.  I don't know any other reason that it is special other than it just works better lol

#3 BENboBEN

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Posted 09 January 2013 - 01:28 PM

I always thought it was NS = New System, and then obviously 2 being the 2nd update to the design. The advantage is crazy good gas efficiency. No one else comes close. KSC also calls the NS2 system S7 or System 7.

#4 drewroud

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Posted 09 January 2013 - 01:55 PM

What exactly is different in the ns2 system over the system 1 that gives better gas efficiency?

#5 Outlaw1995

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Posted 09 January 2013 - 02:02 PM

View PostBENboBEN, on 09 January 2013 - 01:28 PM, said:

I always thought it was NS = New System, and then obviously 2 being the 2nd update to the design. The advantage is crazy good gas efficiency. No one else comes close. KSC also calls the NS2 system S7 or System 7.

I believe the KSC's version of the NS2 gas system is called System 7 Two... not sure... that may be force velocity (FV) system. I can't remember. LOL


View Postdrewroud, on 09 January 2013 - 01:55 PM, said:

What exactly is different in the ns2 system over the system 1 that gives better gas efficiency?

Better seals that transfer the gas from the magazine to the cylinder and out the barrel much more efficiently. When firing an ordinary GBB pistol made by some other company, you may notice that it may spew gas when firing/cycling. That means the gas spewed could have been used to force the slide back, or be used to fire the bb. Instead that gas is wasted. NS2 ensures a better, more gas efficient shot even in cold weather.

Also, more fps, and much harder kick distinguishes the NS2 from other airsoft gbb pistol designs.

Edited by Outlaw1995, 09 January 2013 - 02:13 PM.


#6 Outlaw1995

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Posted 09 January 2013 - 02:08 PM

I'm posting an image between a SP2009, and an SP2022, both Sig (P) M226-style models, made by KSC back in the day. But, I do believe this was what the older system looked like for both KSC and KWA, compared to the current cylinder... Notice how the slide/nozzle assembly on the older generation used the nozzle itself to knock the bb in to the barrel, compared to the bb feeding arm on the updated cylinder commonly used today.

Posted Image

Sorry for the history lesson! LOL, but also notice the gas receptacle on the cylinder. On the updated version it is much larger and flat, on the older model it is smaller, and curved... not sure you can see it, but it is in fact curved.

Edited by Outlaw1995, 09 January 2013 - 02:12 PM.


#7 Viet

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Posted 09 January 2013 - 03:12 PM

NS2 [New Structure 2]

The patented NS2 internal gas delivery system is found exclusively in KWA manufactured products.  This system utilizes an advanced, lightweight composite gas piston with a two stage internal expansion chamber that delivers gas more efficiently than that of its predecessors.  This design increases the weapon’s cycle rate while providing crisp realistic blow back action.  Muzzle velocity is increased and shots are more consistent due to the tighter tolerances of the NS2 gas system.

#8 drewroud

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Posted 09 January 2013 - 05:45 PM

Ok, now this thread is going somewhere. I have an old style usp with the described metal loading nozzle. It has the curved magazine gasket and port as well. So the newer design is similar to the marui, It has a plastic loading nozzle that loads the bbs.

So here is what is in the ns2 so far according to you guys:
~Straight magazine gasket and port which makes a better seal
~Plastic loading nozzle
~two stage internal expansion chamber???

Doesn't every gas gun have a two stage expansion chamber? The first one is to shoot the bb itself, and the second is for the recoil of the slide / bolt?

Is it possible to look up exactly what is patented in the ns2 design?

#9 Outlaw1995

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Posted 09 January 2013 - 07:58 PM

Closest thing to a patent I can provide you is this:

http://www.freepaten...om/6810870.html

This may or may not be KWA... but given that it's got a diagram of one of their older USP models (scroll down), it's likely that it is them...

#10 The_DG

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Posted 16 January 2013 - 09:43 PM

Yeah, as far as I know I has always thought it was a two-stage system because of the 2. I thought I heard something about there being 2 chambers and somehow its different. I dunno, that was just something I heard. I do know one thing though, its the most awesome thing ever. Put 3 mags through my MK III last summer when it was ~70 degrees (fahrenheit) out-side. That was before the gun started to cycle slowly, was able to put almost another whole mag through, but that was with the bb's not being shot very strong or far. But that was really interesting.




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