My Glock Mods
Night Sites for the carry weapon A G27 Gen 4 with TRU GLO TFO's
A Streamlight TLR4 Light Lazer combo for the HD Glock.
That's it end of story. They are one of the best pistols ever made for a reason. Think of how much ammo you couldhave had for the money you spent on the toys.
PS I am a lefty also and I do mag drops with the middle finger on the left hand. I can do so with no modification to the mag release on both guns and don't have to twist the gun away from the target. I also have smaller hands.