Front rails show through the frame of my G34 Gen 4 - normal?

[gunsrfun1]

Just got a new G34 Gen 4 and while cleaning it, I noticed that the front two metal rails have a couple spots where they show through the inner part of the plastic receiver. I compared to my G19 Gen 3, and the plastic at that part of the Gen 3 frame is thicker. So I am thinking this is somewhat normal or acceptable for the Gen 4, due to the thinner plastic there. I'm assuming that those two rails are actually one U-shaped piece of metal that's molded into the frame. Either the gun came that way or I am getting some wear from the recoil spring rubbing against the plastic.
I don't really see these coming loose or anything, but just thought I would ask if anyone has seen this. Photos attached so you can see what I mean: It's more apparent on the left side than the right side.
Thanks

 

[Bovice]

That doesn't seem right... my slide doesn't get close enough to rub that on my 17.

 

[gunsrfun1]

Actually it's not the slide that rides in that channel, it's the recoil spring that rides in that channel. I think the Gen4 recoil springs are larger in diameter than previous generations, so there is less plastic to mold around the rails. So that may be the cause of the issue, the spring rubbing against the plastic. Or it may simply be a manufacturing thing. I'll see if any Gen 4 owners respond and have noticed the same thing. Thanks.

 

[Ben86]

I haven't seen that before on any of my Glocks, but they are all Gen3. That doesn't seem normal to me. I would call up Glock and ask them about it, or if you bought it from a place with a gunsmith, take it to them and ask. I doubt it would affect function, but it doesn't seem right.

 

[5-SHOTS]

Actually it's not the slide that rides in that channel, it's the recoil spring that rides in that channel. I think the Gen4 recoil springs are larger in diameter than previous generations, so there is less plastic to mold around the rails. So that may be the cause of the issue, the spring rubbing against the plastic. Or it may simply be a manufacturing thing. I'll see if any Gen 4 owners respond and have noticed the same thing. Thanks.

That's pretty much says everything.
Gen4 dual recoil spring assembly is alot wider than the Gen3 one: to accept it there's less plastic in the front of the frame , expecially near the front rails. The springs have also round coils instead of the previous generations flat coils. Round coils springs get off-center when compressed, so the larger one rubs against the frame during firing. This is a common "feature" of Gen4 Glocks, so after few hundred rounds they start to show the steel sub-frame.

 

[Bovice]

Sorry man, the glare in your pics fooled me. I was "seeing metal" in the wrong place. My 17 is showing the same wear, and I'm at maybe 300 or 350 rounds. I'm not worried and this is my first Glock pistol. It's been out (the 17) for 3 years now and the British did just pick it to replace the Hi-Power. I think if there was an issue with that, we'd know and it would be resolved.

If not, I'll send it back for a new one if it stops working. I'm sure they can find me something that will.

Some quick research tells me that this condition is normal. So don't worry.

 

[Ben86]

Some quick research tells me that this condition is normal. So don't worry.

Normal? What a hideous thing to be normal. Normal wear on the slide rails and top of the frame is one thing, but the inner frame wearing away to show the slide rail inserts? I find that offensive.

 

[5-SHOTS]

Quote:
Some quick research tells me that this condition is normal. So don't worry.

Normal? What a hideous thing to be normal. Normal wear on the slide rails and top of the frame is one thing, but the inner frame wearing away to show the slide rail inserts? I find that offensive.

You know, when an issue comes from Glock it's the ammo, the owner, or "it's normal".
Perfection doesn't accept exception.

 

[Spade5]

Just like a Harley

Whenever something is a bit odd the dealer will say "they all do that," and maybe they do but that doesn't make it right.