I have just fitted one to my HW95 (last week) Extra set back. Was not as simple as implied in the instructions. Sear engagement had to be adjusted to the point where I am not able to adjust the trigger weight screw to lighten it ( It is currently set flush with the housing) as little as 1/4 turn lighter and the sear will not release, as the trigger doesn't go back far enough before fouling the adjuster screw. I am currently running with a heavier pull weight, but am considering chopping half a coil off the trigger weight spring to compensate. It does however drastically improve the reach to trigger on the Weihrauch stock for the better . I would think if I ordered the standard set back trigger the adjustment would not be a problem.

John