Buy Beretta A300 Ultima Patrol Semi-Automatic Shotgun Online. Elevate your tactical set-up with the Beretta A300 Ultima Patrol – engineered to be ultra-reliable and easy to manipulate. Featuring the classic mechanisms of the venerable A300 platform, this defense shotgun includes enlarged controls, an enhanced loading port, a thinner forend design with multiple m-lok and qd sling mounting points, and a 7+1-shot extended magazine tube secured by a custom barrel clamp with integral m-lok capability.