I've shot both gen 3 and gen 4 in model 27 and 21 and both were great. I believe the gen 4's have a different recoil spring that supposedly improves upon the design from a gen 3 to a gen 4. It's purportedly "more accurate," but accuracy has more to do with the shooter than the gun. I haven't seen that much of a price difference around here, but if it were me, I'd probably just get the gen 4.

I appreicate ur input Jon

I do recall reading problems with the Gen 4. Honestly I like how it looks better and generally assume newer is better but in this case I am unsure

I have a Gen 4 17 that has performed superbly for about 3350 rounds so far. Can't believe a 19 would be much different. It's amazing the crap you hear on the internet.

gen 3 has a single spring and 4 has a double . The double spring is suppose to make the gun recoil smother and less recoil; I can't tell the difference

I've had the Gen 4 since February and have since fired around 750 rounds and so far have not experienced any problems.

I have a Gen 3 G19. It is solid. Never a malfunction. I'm sure the Gen 4's are fine, but cannot say from personal experience.

i prefer the look of the GEN 3s better, but either way your getting a G dude, gonna be good

Ur Gen3s are gonna be cheaper, reliable, and classic thats why i would lean that way

Have a Gen 4 G19. 3000+ rounds with not one single problem. Shot my buddy's Gen 3 before I bought it and it was great. Agree with jakeleinen1 - etither way you're getting a Glock and it's gonna be good.

I would recommend the Gen 3's for a little while longer. I know the Gen 4s were having problems with the extractor spring and I think the recoil spring. Even some of the ones that both had been replaced were still having problems.

I like the Gen 3's best.
I wish Glock would do a model with steel regular or night sights, interchangeable backstraps and ambi mag release with everything else gen 3.

Originally Posted by NCWalrus

I am not interested in the ambidextrous mag release as I am right handed.-- the updated grips do not seem to do much for me

Whether the gen 4 has issues or not can be debated. The gen 3 has no issues. Also, why pay more money for features you don't need? I vote gen 3.

Originally Posted by SMann

Whether the gen 4 has issues or not can be debated. The gen 3 has no issues. Also, why pay more money for features you don't need? I vote gen 3.

I totally agree. The Gen 4's really add nothing of significance.