Got round to fitting this kit yesterday. The CZ trigger pull was 4.5 lbs and it was spoiling what a basically an excellent rifle.

Using the red tube and middle spring from the kit brought the pull down to 2.25 lbs, the lightest spring made it an amazingly crisp 20 oz pull with no creep or graunching.

One tip when fitting this kit to a CZ455, Before driving out the front trigger pin (the one that the brass tube goes over) put something through the frame to hold the top sear in the raised position. If you don't do this then the sear drops down when the pin is removed and the 4mm diameter detent ball pops out of position and is very awkward to get back.

If you do lose the ball (happens in 50% of the cases...) then don't worry. Pop down to your local cycle shop and buy a pack of 5/32" (3.97mm) ball bearings for a couple of pounds and you are back in business.......

Neil