PROWLER was a mid-1980s experimental robot mobile sentry gun device.
[1] The name was an acronym standing for "Programmable Robot Observer With Logical Enemy Response".
The Logical Enemy Response was twin M60 machine guns, and a grenade launcher.
"[2] PROWLER was a six-wheeled vehicle with a gun turret and sensor array, resembling a miniature tank, developed from 1983 onwards.
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