Jammer from the gitgo - SGM Tactical Glock 17 9mm Full Size Compatible Match Barrel Threaded Nitride

I cannot get the gun to eject. Cases stick in chamber. Have used valve-grinding compound to loosen the grip on the casing. Slips easily into chamber unfired, but won't cycle after firing. Have compared to barrels from functional 17s and the grip in the chamber appears to be the difference. Hate from the gitg0to put more money into gunsmithing as the project was meant to avoid those costs.