G19 Gen 3 & 4 barrels interchangeable?

[donkbet]

I just purchased a Gen 3 G19 with factory TB. I'm planning on picking up a FDE Gen 4 with a Lone Wolf and swapping the barrels. Are they both interchangeable?

 

[Phat Eagle]

Yes, but the guide rod and springs are not.

 

[Avenida]

Yes they are, guide rods and spring have nothing to do with it.
Although some gen3 barrels have a smaller socket for the smallet gen3 rod (some gen 3 have the same notch as gen 4), the gen 4 rod will fit because the rod does not sit in the notch anyway and it always moves out regardless of the notch size.

I have both gen 3 ans gen 4 glock and the barrels are totally interchangeable.

Cheers

 

[donkbet]

Thanks guys!