The barrel is very accurate but would not eject shells - Agency Arms Mid Line Compatible Barrel, Threaded/Fluted, Glock 17

The barrel seemed to fit perfectly into the Glock 17 2nd generation. Upon testing the group of (10) shots achieved a 2.4" group at 40 ft., excellent results. However, not a single shell would eject from the barrel. I tried different ammo manufacturers but always the same result. I will have to test further as I have never had this issue with any of the many GLocks I have.