I don't understand why an adjustable gas block would necessarily be better. Both seem to do the same thing. One just does it at the front of the gas tube, and the other does it at the rear of the gas tube.
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I wonder why they put the adjuster on the left instead of the right.
It seems like if you could access it via the ejection port it would be better. In the sense that if you pop off your QD can then you may want to switch your gas setting without having to open your receiver up.
I think that many people will be reluctant to use this, until it gets in the hands of end-users and put through its paces many times over. Replacing a Colt, BCM, LMT, Noveske,DD, etc BCG with this is most likely not going to be high on many people's list.
Thank you for the clarification.