I'm preventatively changing out small parts and springs in a Glock G45 at ~15K rounds. Some are in stock at glockparts.com but many are OOS. Which of these are most important, and am I missing anything?
Recoil Spring Assembly: 5,000-7,500 rounds (Glock Gen 4)
I have spares
Firing Pin Spring (striker): 15,000 rounds
$5 https://glockparts.com/glock-firing-pin-spring-5-lb/
Firing Pin Safety Spring: 15,000 rounds
$5 https://glockparts.com/glock-firing-pin-safety-spring/
Extractor Depressor Plunger Spring: 15,000 rounds
OOS https://glockparts.com/glock-extract...lunger-spring/
Magazine Catch Spring: 15,000 rounds
$4 https://glockparts.com/glock-magazine-catch-spring/
Trigger Spring: 15,000 rounds
OOS https://glockparts.com/glock-trigger-spring-5-lb/
Slide Lock Spring: 15,000 rounds
OOS https://glockparts.com/glock-oem-gen...pring-g17-g19/
Slide Stop Lever Spring (attached to slide stop lever): 15,000 rounds
OOS assembly: https://glockparts.com/glock-oem-gen...-g17-g19-g19x/