u/EfficientEconomist50

I recently purchased a SIG P211 GTO and have been using Academy Monarch 115 grain ammunition. I’ve fired approximately 300 rounds. However, I’m experiencing a problem with the receiver returning after firing and injecting the round. The receiver doesn’t properly seat forward, and I have to manually push it forward with my thumb to fire the next round. Currently the factory-installed green spring is installed, but I’m seeking any suggestions on how to correct this malfunction.