Originally Posted by
Mike325
I got my Gen4 shortly after it came out, and put it in service as a duty weapon about a month after that. Here's my thoughts;
1. If your recoil spring is stamped 03, it is a stiffer spring. This spring allows full power duty ammo to recoil much softer and flatter, making it feel as if you were shooting light target loads out of a Gen3. Here's the trade off, Gen4s are hit miss with light practice ammo, some have cycling issues, some don't. For me, this was a non issue, I reload my ammo so I just bumped my powder charge a bit and I'm happy. For others, they spew a lot of hate because their gun has cycling issues with light/lower power loads. It's simple physics, and for some reason people refuse to acknowledge it, tighter recoil spring means it's more difficult to force the slide back, shooting lighter target loads (wwb, federal 115gr, etc) may not be strong enough to force the slide back every time. If your recoil spring is stamped 04, your gun will shoot the same as a gen3. You will lose the advantage of being able to shoot higher power loads with such a soft feel, but you will be able to feed practice ammo without problems.
On that note, your duty ammo is high power ammo and will have no issues cycling your Gen4
You need to understand this going in, otherwise you will be disappointed with your Gen4, then go register on another forum dedicated to glocks, and spend the rest of your days bashing the Gen4.
2. I love the texture for shooting. I love it for duty carry. I love the positive grip I can get no matter what the conditions are or how stressed I am when I draw.
I hate the texture for IWB carry without a t-shirt. If I'm rolling without a t-shirt tucked in, I will just choose my glock 26 instead. For me the texture on the gen4 is uncomfortable against my love handles.
I love my Gen4 Glock19. I know exactly what it is and does, and I appreciate how it handles high power loads. YMMV