On the new second generation, the floor plates are held on by two screws in addition to the fins- Damn things are durable after that.

And really easy to reseal too.

gen 2 mags work fine with first gen ptps?

Is that a question?

sorry, yes, do the gen 2 mags work fine in first gen PTPs?

I ask because I have a pre-NS2 PTP M9 that has needed some new parts, but I haven't bothered to fix it because I've broken so many mags.

No such thing as a pre-NS2 PTP. Second gen mags are dimensionally the same as first generation magazines, except for two reinforcing screws on the baseplate.

What GS said. I have Gen 1 and 2 guns, Gen 1 and 2 mags, all are interchangeable.

Sweet, thanks for clearing that up for me. I wasn't aware there wasn't a pre-NS2

There are pre-NS2 M9s, but I'm not aware of any PTPs that aren't NS2.

I'm fairly certain it was a PTP...then again, it was my first airsoft purchase over 4 years ago. How do I tell the difference between the two?

it actually says professional training pistol on the right side of the slide

KWA. The quality of their products is unrivaled (on the consumer market. MIL/LE market is a different story).