The most reliable Glock is the one you bought! IF this is going to be your carry pistol don't "F" with it besides some better sights maybe. Now if this is going to be your toy and don't mind it being down just in case you screw something up then the sky is the limit.
I've been playing with a G22 and so far I think the best bang for your buck would be a 3.5# connector, twenty five cent trigger job, sights, and possibly a lighter recoil spring, I'm kicking the idea of a Titanium plunger and spring, tungsten guide rod and maybe even lighter springs but still trying to figure out what weights I want to go with. Later,
Kirk
I've been playing with a G22 and so far I think the best bang for your buck would be a 3.5# connector, twenty five cent trigger job, sights, and possibly a lighter recoil spring, I'm kicking the idea of a Titanium plunger and spring, tungsten guide rod and maybe even lighter springs but still trying to figure out what weights I want to go with. Later,
Kirk