Quote Originally Posted by evert View Post
So... going the HW80 route, I'd guess the first thing would be getting a softer, longer spring, and loosing some piston weight?

I was quite shocked at the 4mm wire spring, never seen anything that heavy in a spring gun. However, it has a quite large ID, so it actually seems softer than an HW80 spring. The tophat was so long that the rear guide was cut down and extremely short.
Does it look like it was original Walther internals?