The Glock 23 and 27 barrels are interchangeable.
I had a similar experience with a Glock 21 and 30 barrel swap that did not work.
You can get a reasonably priced repacement barrel from
www.norecoil.com ... EFK Firedragon. I have several for the Glock and they work great! If you really want a primo barrel...
www.barsto.com . I have an order on the way from them and will report the results!