Actually 3 springs Hammer Spring, Recoil/OpRod Spring and the Clip Latch Spring.
Proper Cleaning and Lubing
Proper Non Corrosive Ammunition – If you are utilizing the right ammunition and according to CMP this is ammunition with pressures less than 50K CUP with a bullet weight less than 172 grains.
And some Insurance Ported Gas lug
written article: https://dayattherange.com/?p=11170
Memorial Day 2023