He's serving eight years for 'armed robbery'. [=robbery while carrying a gun or other weapon]
We went into the forest 'armed with' food, extra clothes, and lots of bug spray.
a group of 'heavily armed' men [=men who are carrying many dangerous weapons]
(..) Mary, Mother of God. GOV.SWANN: What happened here? It's the powder magazine. Merchant vessels run heavily armed. A lot of good it did them. Everyone's thinking it. I'm just saying it. Pirates. There's no proof of that. (..)2003 Pirates of the Caribbean: The Curse of the Black Pearl
(..) hands on your heads. Step back. THOR: This woman is unwell. She's dangerous. So am I. Requesting armed response officers to scene. Hold on to me. What are you doing? (GASPING) Holy shit. (..)2013 Thor: The Dark World
(..) It'll blow a hole clear through the hull of a battleship. - What about a shark? - Abso-fuckin-lutely. Okay, so the torpedo's hooked up and armed. Are we ready? The Mark torpedo launch system's nominal, but-- there's a wrinkle. It wasn't designed for a biological target. (..)2002 Shark Attack 3: Megalodon