They're system 7, just the internals of the gun is made for HFC143 gas.

NO YOU CAN'T...where did you get your information?
I have both versions and the mags are NOT interchangeable...see for yourself!

KWA (left) KSC (right)
http://i217.photobucket.com/albums/c.../KWAMP9024.jpg

KSC (left) KWA (right)
http://i217.photobucket.com/albums/c...MP9/KWAMP9.jpg

KSC (left) KWA (right)
http://i217.photobucket.com/albums/c.../KWAMP9022.jpg

We get the friggin point!! haha

Can a KSC MP9 barrel be used on a KWA MP9? I'm thinking about buying a KWA KMP9 but it comes with the orange muzzle. From what I understand the barrel and muzzle are one in the same, so would need to replace the entire assembly.

bit of a necropost, but the new ksc mags work with the kwa, just make sure they're system 7/ns2

Yea. Kev, the "KSC" mags you posted aren't System 7, They're the old style TMP ones..

http://shop.ehobbyasia.com/media/cat...G-50_MARK3.jpg

That's ripped from the "KSC MP9 Magazine" on Ehobby

I'm well aware of what I posted...keep in mind that it was done BEFORE the KSC System 7 MP9 was released! I was simply proving the old KSC TMP/TP9 mags were not compatible with the newly released KWA MP9 with the ns2 (system 7) internals.