They just dropped this today. Pretty cool. Specifically the part where you can swap out manifolds and drill your own ports in the manifold plates. I've been drilling and tapping the gas ports in fixed gas blocks and using the grub screws as manifolds, by drilling them out with fine #48 or #52 bits. This allows for two settings and offers manifolds with pre-drilled 0.034" holes for you to open up. Complete customization for a dual rifle setting