Scott in the comments in the DAP post said the DAP was a big bird.
It’s not. The biggest gunship I’ve heard of is the gunship conversion of 4 CH-47A’s to Armed/Armored escorts for troop lift helos.
Of course, the CH-47 still serves in our Army, and in the armies and air forces of several allies. Most are general purpose cargo/troop haulers. But the Special Operations Aviation Regiment also operates a version optimized for inserting and extracting special operation troops behind enemy lines.