I have the G20SF. The only upgrades I've applied are:
Trijicon TFO sights
Glock (-) connector
KKM .40 S&W barrel when shooting .40 ammo (if you don't think this is necessary, that's not my issue as they're your hands)
Pistol light (tested with both a TLR-1 and an Insight M3X, none of the issues that plague G22s with lights)
The recoil of most 10MM rounds is the same as the .40, but feels softer in the larger frame pistol. Full power 10MM is good, clean, loud FUN! If I were going to run full power 10MM all the time, I would invest in a heavier recoil spring. That would be the only other mod I'd want.
Trijicon TFO sights
Glock (-) connector
KKM .40 S&W barrel when shooting .40 ammo (if you don't think this is necessary, that's not my issue as they're your hands)
Pistol light (tested with both a TLR-1 and an Insight M3X, none of the issues that plague G22s with lights)
The recoil of most 10MM rounds is the same as the .40, but feels softer in the larger frame pistol. Full power 10MM is good, clean, loud FUN! If I were going to run full power 10MM all the time, I would invest in a heavier recoil spring. That would be the only other mod I'd want.



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