I put an adjustable gas block on an AR today, kinda a 1st go messing with this stuff.
The rifle had been perfect for 2000 rounds then somewhere later exhibited signs of over gassing causing FTE, completely resolved by heavier buffer and spring. A better fix I think is to address the gassing so going the AGB route...
I thought what probably triggered the onset was erosion of the gas port, an explanation that is common, but unquestionably it looks factory machined perfect. However my gas tube is really well carboned a couple inches up anyway, and hopelessly stuck to the original block and that got me thinking. Is it possible sometimes we start with leaky gas blocks/tubes that later seal off and increase gas flow to the BCG?
The rifle had been perfect for 2000 rounds then somewhere later exhibited signs of over gassing causing FTE, completely resolved by heavier buffer and spring. A better fix I think is to address the gassing so going the AGB route...
I thought what probably triggered the onset was erosion of the gas port, an explanation that is common, but unquestionably it looks factory machined perfect. However my gas tube is really well carboned a couple inches up anyway, and hopelessly stuck to the original block and that got me thinking. Is it possible sometimes we start with leaky gas blocks/tubes that later seal off and increase gas flow to the BCG?