Can you dinine "recoil assembly"?
Should be a
1)guide rod
2)spring
3)spring tube
4)bushing.
My Sprinfield Champion had a slightly different setup.
I changed mine over to the "military" style.
Factory guide rod
Wolffe spring
EGW "YOU LOSE" spring tube
Ed Brown bushing.
(Note, EGW bushing did work, but Ed Brown fit slightly better.)