[quote=TysonT]Gas system has no effect on Buffer Spring, Buffer weight/Style, and stock selection.
If I understand what you wrote, you have to run a lighter carbine buffer in a rifle lower (with rifle style spring, not carbine spring) to get it to fire all loads? Are you sure you don't have another issue with your upper, like the gas port in the barrel is too small or something in the gas system is not lined up correctly?
It's a barrel from Montana Barrels so I doubt they screwed the gas port up but that's possible. I double checked the gas block, it the same as a friend has used on several guns so I don't think that is the issue.
Yes, rifle lower, non-full auto carrier with a rifle buffer with the weights removed, runs great.
