A little background on this pistol... The slide is aluminum as well as the frame, so the fit is poor at best. The underside disconnector rail on the slide resembles the standard slide but is higher up inside the slide. It has no firing pin stop and that area is rounded up into the disconnector rail. Hammer hooks are at .019" and sear engagement are perfect. The Koenig hammer and EGW sear that are in it are ok but the hammer could be a few thousands taller to make sure the hammer is pushed past the sear nose. A standard 45 or 9 would have the velocity to ensure the engagement happens but this 22 is, well, it's a .22 lol
Tim