I have put just the M*CARBO springs in a couple of Axis’s in the past for family members. I recently purchased an Axis for myself and the trigger pull weight was 5 lbs.-10.5 ozs out of the box. I ordered the Pro Trigger Kit and installed it on my Axis. Now my trigger pull weight is 1 lb.-1.2 ozs. and I no longer have the sloppy side to side movement of the trigger. I highly recommend this kit over replacing the trigger. The kit costs much less and really helps with the trigger pull weight reduction.