I recently had a Colt SOCOM 14.5 in barrel installed on a new upper. While shooting it using 5.56 55 gr ammo, I’ve noticed that the brass is ejecting around 2 o’clock. After doing some reading, I’m understanding that the rifle is over gassed? Further reading I understand Colt shipped H buffers with the 6920, but shipped H2 buffers with the SOCOM barreled 6920’s. I’m trying to understand if both rifles are semi-automatic, is there a reason why Colt would use an H buffer for the 6920 and an H2 buffer for the SOCOM 6920? How would the thicker barrel of the SOCOM necessitate a heavier buffer? Or am I interpreting this wrong? I’m trying to figure out if I should get an H2 buffer or not, due to the perceived over gassing.