I've got one in 308 Win with the scope package. The first thing I noticed after that heavy trigger was the length of the scope. I have several other of somewhat better quality which are just to short to fit. I got a set of extension rings to solve that problem and yesterday undertook the trigger situation with misgivings.
Having had stressful prior encounters with springs and other unknown objects being suddenly propelled out of unseen crevices during disassembly and being clueless where or how they go back in, I am happy to report that there is a silver lining in a low cost simple trigger assembly such as the one in the Axis.
The trigger assembly was easy to remove with one pinfrom the action, the trigger equally with one pin. There was a very small "C" clip to retained one pin, the type of clip that if it takes off on you, you will never find it it again.
The spring screwed out, yep the spring is of two diamenters and the smaller side acts as a screw to hold it in place. There is one more spring that sit in a blind hole in the barrel and pushes against the trigger assembly, Easy to see and remove/install. It has some purpose, I just don't know what it is.
I removed two coils on the big side of the rtriger spring , got it all back together, after a fair selection of cuss words in regards to installing that "C" clip which is the second part of the operation that can cause a sudden disappearance of said item. Perhaps the is a special tool for those infernal items, I managed to get it back on with needle nose pliers.
The operation did not turn it into a Timney or Basix trigger but it is a definite improvement.