Lone Wolf has good aftermarket Glock stuff.

Glock makes a 3.5 pound trigger assembly that's pretty good. There's also a little mechanism that makes the trigger reset a bit faster. A friend of mine has a G19 with both modifications installed, and seems to love it.

I have a stainless steel guide rod, with a bit beefier spring in one of my Glocks. That's the only modification that I've done. It's helped reduce the felt recoil from the gun, and I haven't had any reliability problems with it.

I release the Glock slide by retracting it a bit, then letting go. It's slightly slower and won't win IPSC matches, but is very positive (unless you "ride the slide") and fumble-free. Also doesn't draw blood.

I am not one who thinks most slide releases are too hard to operate when under stress. This technique just works better on the Glocks with the small slide lock. I am not a fan of modifying guns any more than absolutely necessary, since it typically reduces reliability, though I know lots of guys like to tinker with their guns.

I wouldn't futz with the trigger on anything but a hobby/range gun. The Glock "service" (5.5 lb.) trigger is perfectly adequate for defense. YMMV, of course.

I tend to agree w/Mike. I think the Glock trigger is pretty good as-is. My friend thinks what he's done is an improvement, but I"m not convinced it was necessary. He likes it, but it's not for me.

I get a bit squirrely with my carry guns. I want them to work,and I want to know they work. When you modify things like triggers different from factory specs, there's always a tiny issue in the back of your mind as to whether the modification is going to screw something up whe you really need it; at least for me.

I even have some reservations about changing the guide rod and recoil springs, though extensive shooting hasn't resulted in a single problem from the modification that I made.

But that's just me.....I think the Glock does flip a bit since it's so light, and I do think the recoil guide and spring helped that problem, at least in my mind.

Yeah I can see your point of if it aint broke dont fix it. My friends has had his Glock since '89 and he says the slide does lighten up after a while.