Armor Class 15 (natural armor)
Hit Points 11 (2d8 + 2)
Speed 30 ft.
Senses truesight 120 ft., passive Perception 10
Languages Modron
Challenge 1/4
Axiomatic Mind. The duodrone can't be compelled to act in a manner contrary to its nature or its instructions.
Disintegration. If the duodrone dies, its body disintegrates into dust, leaving behind its weapons and anything else it was carrying.
Multiattack. The duodrone makes two fist attacks or two javelin attacks.
Fist. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 2 (1d4) bludgeoning damage.
Javelin. Melee or Ranged Weapon Attack: +3 to hit, reach 5 ft. or range 30/120 ft., one target. Hit: 4 (1d6 + 1) piercing damage.
Monster Manual (2014), p. 225