After looking at Bond Arms for over a year, I recently purchased a USA Defender chambered in .410/45 LC with a 3" barrel. What a dream, multi purpose handgun.
As a retired military veteran of over twenty years and now a city police officer, I carry almost everywhere I go.
When I'm not in uniform, this is the protector of choice (belly holster, hip holster or simply slid into a pocket. There is a ton of serious business packed into this weapon.
The utility of "shot shell" is endless with this weapon. Inside the distance of thirty feet, this pistol will demand compliance or get it by action. Enough said.