[talon]

System 7 is superior in most respects. I have experience with the compacts both old and new, and while some of solid-feeling isn't present in the new system 7, and the recoil spring in KWA guns is aenemic, they otherwise perform very well.

Additionally, non-system 7 are all plastic, and the triggers have a tendency to break. To my knowledge, and in my experience, this has been alleviated in system 7, though the USPc I'm using is experiencing considerably less use compared to the original USPc that I initially bought. Parts for the older system will be difficult to find, particularly a metal slide and recoil spring to go with it. Some of the lower frame parts may fit, though I haven't experimented at all, due to not needing to replace anything yet in the current system 7.

However, KSC will have better trades and none of the white warning writing, a slightly better in-hand feel, and is still a rock solid piece of kit. You'd just likely need to order a couple triggers in the event that they break during use. If you can get them on the cheap, it may not be a bad idea to buy a couple, though KWA guns tend to be rather inexpensive already.

And finally, I'm speaking of my experience with the USPc, not the full-size USP which came out quite a bit later than the USPc, which may include some improvements in the design.