01-09-2019, 05:53 PM
Wideglide, I hope all is well. I thought I'd let you know that I resolved the issue I was having with my 12" Faxon pistol build by drilling the port out from .075 to .077. I have a drill press but kept it simple using a hand drill with a depth stop on the bit, similar to what is shown in this video: https://www.youtube.com/watch?v=KInGRI3jx9A. It was my first time doing that so I was a little reluctant, but it was super easy and only took about a minute once I had everything set up.
Given my experience, I think your 0.0595" gas port is wayyy too small and must be the culprit. I just finished a 5.56 16" midlength Ballistic advantage pencil barrel build and am thinking I may have to drill that gas port out as well since it's ejecting at about 4-5 o'clock with a standard carbine buffer. It seems BA is tending to undersize their gas ports, although I have an 18" midlength hanson profile in .223 wylde that has performed exceptionally right out of the box.
Given my experience, I think your 0.0595" gas port is wayyy too small and must be the culprit. I just finished a 5.56 16" midlength Ballistic advantage pencil barrel build and am thinking I may have to drill that gas port out as well since it's ejecting at about 4-5 o'clock with a standard carbine buffer. It seems BA is tending to undersize their gas ports, although I have an 18" midlength hanson profile in .223 wylde that has performed exceptionally right out of the box.