Are Gen 3 and Gen 4 barrels compatible?
If I have a G22 gen3, will that barrel fit and function in a G22 gen4 and vice versa?

Thanks.

Barrels are cross-compatible.

Thank you very much; time to buy another gun.

quote:

Originally posted by the Hudge:
Thank you very much; time to buy another gun.

Whoop!!

What about the half-moon cutouts for the recoil spring? I could have swore they are a bit different.

There used to be a small difference in that area, but the newer Gen 3 and Gen 4 barrels are the same. (They share the same part number and everything.) Besides, those half circle cutouts only serve to retain the recoil spring while the slide is disconnected from the slide. Once the slide assembly is installed, the recoil spring no longer rests on that cutout on the barrel. You can still use a Gen 4 recoil spring assembly with an older Gen 3 barrel with the smaller cutout. And vice versa, with a Gen 3 recoil spring assembly and a Gen 4 barrel with the larger cutout.