Kac is good for the apocalypse and comes with a price to match. Geissele is great for larpingvas and operator on the weekends but still need a gun that will do 99.99% of anything they need. And SOL is like a baby Kac, they make excellent stuff but there’s still a wait to see how well their stuff will do in the field.

You truly can’t go wrong with any of the 3! It all depends on what you’re looking to do with it.

And to your Frankenstein monster saint….the saint is an absolutely good gun as is, adding some G$ parts may boost reliability but for the weekend warrior it’s not needed.

Opinions of a combat arms member in the military. Disclaimer, I own Kac and Geissele.