so I'm tuning my AR, trying to get the brass to stop bouncing off the receiver. and the ejection has moved from 4-5 and super energetic (it would hock the brass hard enough to dent the deflector) to about 1:30-2 and rather softly, around 4-5 foot.
current setup is a flat wire spring, H3 buffer (I have all the parts to make it an H1/H2 as well.)
I've found resources that say it's overgassed, undergassed, and perfect.
so what is it really?