doing a SBR in 6.8 10.3 barrel was wanting to know the gas port size if anyone knows it would help Thanks Mike
Are you taking a 16" barrel down to 10.3" or ordering a factory barrel. I didn’t measure mine when I ordered it from Wilson Combat, but it’s a 12" bbl and runs perfectly. Look at 68 forums and see if anyone there has a similar setup.
or
Would be they guys I would email with questions. They know their stuff.