Minus connector of your choice, 4.5# firing pin spring, reduced power safety spring, apex trigger shoe and polish every trigger component if you do not want to purchase a Johnny Glock or Vanek trigger.
I have many Gen 5 Glocks and have seen zero issues with ammunition. I use 147gr. AE for range and 147gr. HST for carry. They also work well with 124 AE/HST/Gold Dot
The early Gen 5 Glock barrels had a shorter throat which Glock later changed.
Zev is calling a 4# spring a 2# spring. They are calling a 5# spring a 3# spring.
Called or rated 2# by Zev is Actually a 4# spring. I purchased them by the dozen years ago.
The Zev springs are rated approximately 2# lighter than they actually are. This was verified by Zev years ago. A Glock Will Not Run with a 2# Firing Pin Spring.