This silhouette feels like it’s stolen from every major gun, but isn’t an actual AR. That upper is closer to an AK slant at the rear and the forward barrel shroud is odd. Although I’ve seen some magpul esque 3rd party stuff.
That said, 5.56 is a round I’d be switching off of for everyone else. It’s ubiquitous, but the military is switching away from it due to body armor resistance to 5.56. Now .308 and 300 black out… most of the gun nuts all agree that the best bugout bag gun is an FN-FAL. Excellent stopping power, highly accurate, controllable, and has some great built-in features that make it perfect for survival on the front lines.
I believe a Mucci is 1/4 of a Trusses. Although there could be an imperial to metric conversion in there.