Hmmm....so no complete cut off on zero like the older models. That kinda sucks. Not a lot, but it was a cool feature.My micro freshly back from getting the latest updates at the mother ship. New bolt carrier, bolt, gas block, and gas deflector along with some chamber work. Shot 100-rds through it last weekend without an issue. Interestingly, all rounds were suppressed and it cycled perfectly on the "0" gas setting. Had to call and confirm with Alex that "0" was just the lowest setting and not suppose to be total gas shutoff like I thought was the case. He confirmed "0" still allowed gas through and there is no complete gas shutoff. Either way, very happy with what was previously a very problematic rifle.