Based on what you've said, I'm about to go off on Race-Gun parts, and why they DO NOT BELONG in real .308AR guns.
I can't believe that WC is using some JP bullshiit in their guns, that they ship to regular customers - that just want guns that RUN. Fucking unreal.
Low mass BCGs belong in fucking Race-Guns - that you make money with, in your competition tour, and win matches with, with your matched load, for your Power Factor, in order to win your category that weekend - and keep your lifestyle up. Winning matches and making money at.
Lightweight BCGs DO NOT BELONG in real guns, that you shoot everyday, with a variance of ammo. Bullshiit recoil systems don't belong in them, either. But, that's another day...
Fuk, this is rubbish. I can't believe that they're doing this. It's fucking bullshiit. I'm astounded, that they're so fucked up on this. And I just ordered another barrel from them last week. Bet your ass I check the gas port size (and fix it if necessary), and check the gas tube length needed. I'm waiting for the barrel to come on before I order the Armalite AR-10 gas tube for it - that I know that it'll need...