02-24-2021, 11:12 PM
Curious about your project, as I can't say this is a path I would go. For something like this, I imagine the safest path is go with a huge gas-port, and an adjustible gas-block. And plan on usings a limited selection of well-tested and adjusted ammo. The M1 Garand runs a gas-port that's 1/2" from the muzzle of that long rifle barrel, and it works well. But it runs a pretty big gas-port, and has a limited window of ammo that works right.

