Diabolus Lives!

I started designing the Diabolus rifle around 2018 and showed it off at SHOT 2020. The gun is basically an AR-18/AR-180 that's aluminum instead of stamped steel, and it uses STANDARD AR-15 bolt heads, barrel extensions and firing pins, as well as all fire control parts. Finally, today, on the 25th anniversary of the founding of Serbu Firearms, Inc. (6/21/96), do I finally get everything done in order to get it to fire semi-automatically!