I just got one of these too. Kinda bummed on the DA pull. Smooth right up to a pretty nasty hitch at the end. Single action was great out of the box. I’m out in the modern weapon systems spring kit, which was fairly easy (I bought all the punches, including the roll pin punch, they use in the install video). This made the DA pull mediocre (7.5 lbs but still a hitch just before the break) and the SA pull amazing (3.5 lbs, very short and smooth). From looking at the internals, the disconnector had one contact face with the trigger bar that was kinda rough (looked like the surface was sorta like the moon…small craters or something).
I tried polishing the trigger bar and disconnector contact faces. This made things better, but still not great…so maybe there’s some other issue, I dunno. If I polish these parts too much I probably will screw it all up. I ordered a new trigger bar and disconnector with the hope that I just got crappy internals. Maybe I should have ordered a new sear group…it’s a bit pricey though.
The good news is that you can order any part from Kriss USA now.
I’m also trying to figure out how to remove the hammer. The retaining pin has me flummoxed. If anyone has any tips, I’d be most appreciative!