Gen4 vs gen3 barrel compatibility

[ar15maniac]

I have been seeing a lot if mixed answers. Solid sources I've found have been storm lake and glockstore.

I'm looking at a ported barrel for a glock 17 gen4. Some companies say it will fit gen3 and gen4. Some places say it fits glock 17 not specifically gen3 or gen4.

Has anyone here experimented with a gen3 barrel in a gen4 pistol. Only things I noticed between barrels has been the lug where the recoil spring sits being at different heights. I don't believe this would affect the gun overall but I want to know if I'm wrong. If I'm wrong, thanks for correcting me. If I'm right, cool. Input I'd greatly appreciated.

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[ihasacookie]

IIRC, the only difference is on the barrel lug where the cutout is for the RSA to sit.

http://tapatalk.com/tapatalk_image.php?img=aHR0cDovL2ltZy50YXBhdGFsay5jb20vZC8xMy8wNy8xMi9vcmlnaW5hbC9uYXF1NWFiYS5qcGc%3D

Stole this off the net but it shows the differences between the Gen3 and Gen4.

[ar15maniac]

Cool. Thanks.

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[send it_hit]

interesting, never knew that notch was different between gen3's.

[09rubicon]

Hmm... Does that count as a "mod" that could result in de-listing pending resubmittal with the required "can't fire with mag removed" CA requirement?

Is it different in any way whatsoever other than the serial number being different? If so I am sure KH is already all over delisting it.