Sentry Bot (Fallout: New Vegas)

s are robots found in the Mojave Wasteland.

Normal
Sentry bots are armed with a laser minigun, missiles, heavy armor, and are very fast.

Unspecified version found in REPCONN HQ
An unspecified version can be found in REPCONN HQ. It has four wheels instead of three and an extra set of arms arching around over its back, presumably its the 'Mister Handy' version of the 'Mister Gutsy' (as in Sentry Bots being civilian or military)

Appearances
s appear in Fallout: New Vegas.