Well I just picked up my new to me K80. It has a 2008 receiver with what appears to be very few rounds through it. The owner stated 2000. It has a pull trigger. However it has been several years since I sold my last K80 and have been shooting a CG (inertia trigger) and Blaser with (stikers instead of hammers). When I got it home I was doing some dry firing (with caps ofcourse) the first pull seems as it should but when I let off the trigger it seems to click like it is resetting the trigger for the second shot. It almost feels like a release set. I can't remember if this was normal with my old K80. I know with my blaser it is seemless. I am sure this is because it is a striker instead of a hammer. I'm going to compare with my buddies K80 to see if it feels the same, if it doesn't I'm going to take it to Allems or Ottsville.