Originally Posted by Green Mountain Boy
Sure--they'll fit just fine. The ejectors
are different, however.
If you run the 40-9 conversion barrel, you can keep the same ejector, because the bore is slightly off-center so that the ejector will function properly. The only thing I would recommend are dedicated 9x19 magazines for this configuration. I used this config on my G33, and I liked it so much that I went ahead and picked up a G26