Really tight fit - AIM Sports Inc .750 Low Profile Gas Block/Mil-Spec

Its a really snug fit. I had to 'wipe down" my gas tybe with emory cloth slightly to get it in the gas block. And even then, it was almost uncomfortably snug. Go to slide the block onto the barrel and that is snug too. I know that to seal correctly it should be, but I shouldnt have had to tap it on with a brass punch. At least none of my other rifles i built needed that. Its going to work for sure, qnd I have a feeling that the only reason it MIGHT not be over gassing my rifle is due ti being a midlength gas system. But we shall see