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DISPATCH 04/26 · 23 Oct 2026
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Lexicon · USA

Bullfrog

An AI-driven robotic gun that shoots drones out of the sky with ordinary bullets — the "magazine-deep, ten-dollar-a-kill" answer to FPV and swarm attacks. Computer vision lays the gun; a human pulls the trigger. Fielded with the US Army and Navy and now valued at $2.2 billion.

Bullfrog
FIG.01 · USA Image — The Allen Control Systems Bullfrog autonomous counter-drone gun. U.S. Army photo (public domain), via Wikimedia Commons.
An AI-driven autonomous robotic gun that detects, tracks and shoots small drones out of the sky using ordinary small-arms ammunition. It is the "gun-based, magazine-deep, cheap-per-kill" answer to the FPV and swarm threat — turning the drone-war economics around so a defender spends bullets, not million-dollar interceptors, to kill a hundred-dollar drone. Computer vision lays the gun; a human gives the command to fire.

Overview

The Bullfrog, built by Allen Control Systems (ACS), is a stabilized, motorized gun turret wrapped around a service-standard weapon and driven by AI fire-control: machine-vision software autonomously detects, identifies, tracks and lays the gun onto a small drone, and a human operator gives the command to fire (a human-in-the-loop design). Its whole premise is economic. Cheap one-way attack drones and swarms have made missile-based air defense unaffordable — firing a million-dollar interceptor at a $500 quadcopter is a losing trade — so the Bullfrog answers mass with mass of its own: standard bullets, fired with machine precision at a claimed cost-per-kill of around $10. It is the "every movement answered" denial layer of the transparent-battlefield thesis — the system that turns seen into dead without breaking the bank.

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