You can adjust the Axis trigger with a snip of the tension spring behind the trigger. Easy to do in about 10 min. Mine is now 3 lbs. Look on U tube for a video.
Tom
Per RSG's recommendation above, I would advise reading the whole procedure. I understand that just shortening the existing spring can produce a similar result, but doing this produces a different set of safety concerns that anyone who is trying it needs to be fully aware of.
IMO, replacing the spring with a lower-tension spring AND adjusting the spring's length per the instructions in the post is the way to go.
Whatever you do, make absolutely sure that you test to make sure the sear won't release should the gun be dropped or bumped during normal use. If you DON'T know how to test for this, you should not be making trigger mods at all.
It's fun to be able to make mods like this, but please make sure you know enough to make them carefully and safely.
Grouse