Each Axis shaft has the "Hidden Insert Technology" (short HIT) and therefortherefore you need a HIT-insert. Normally these shafts are already delivered with such! So be aware that you don't buy additional ones.
- X HIT conventional inserts included
From Lancasterarchery
You can get them for example here.
The Deep Six RPS Steel insert is also compatible but I would absolutely recommend the HIT inserts.
- X HIT conventional thread inserts - compatible
- Deep Six RPS steel inserts - compatible
From the official Axis product site
P.S.: Axis absolutely rock! =)
"I shoot Axis because they're tough shafts, but more importantly, I shoot them for the increased penetration I get on big game." - Fred Eichler