Armored Warfare Wiki

The M50 Ontos is a Tier 4 special premium Tank Destroyer under Oscar Faraday's dealership.

History[ | ]

Class: Self-Propelled Recoilless Gun Carrier
Developed: 1952
Service: 1956-1970
Vehicles Built: 321
Operators: USA

The Ontos ("Thing" in Greek) is a self-propelled recoilless gun carrier and one of the most iconic American vehicles of the Vietnam War. The original Ontos was developed as an alternative to the M56 Scorpion airborne self-propelled gun. In the late 1940s and the early 1950s, the U.S. military recognized the need for a light, mobile tank killer that would be able to traverse even rough terrain to ambush the enemy as well as to be deployed via parachute drops from a cargo plane, arriving on the ground practically combat-ready. The Scorpion would, however, suffer from poor stability and negligible crew protection.

The Ontos was born of the same mindset but had several key differences, the most notable being the fact that the standard rifled gun was replaced by a set of recoilless ones, which allowed the diminutive vehicle to carry incredible firepower. The vehicle also had its downsides and the U.S. Army rejected it only for the U.S. Marine Corps to pick up the tab and order some 300 vehicles delivered between 1956 and 1957.

The Ontos saw action several times before it was deployed in Vietnam. In one of the weirdest tank actions of post-war history, an Ontos knocked out a Swedish WW2 era Landsverk L-60 tank during the 1965 American intervention in the Dominican Republic. With the exception of one or two events, it was never really used as an anti-tank vehicle during the Vietnam War – instead, it was deployed as heavy fire support to various marine infantry units. It excelled in urban combat – a single salvo could level an entire building and the Vietnamese quickly learned to fear it. In other cases, it was essentially used as artillery, firing indirectly at long ranges and bombarding the enemy into submission. The canister rounds were especially devastating against charging Viet Cong troops with a single Ontos being capable of literally shredding sometimes dozens of enemies at once with one salvo. The HE rounds, on the other hand, turned out to be very effective against improvised entrenched positions in the jungle.

However, due to the lack of spare parts and general maintenance issues, the Ontos starting to disappear from the battlefields in 1968 and very few of these vehicles survived the Vietnam War. It was officially phased out in 1973 and the last unit to feature an operational Ontos was likely the Guantanamo Bay garrison that had one working vehicle in 1980.

Vehicle Traits[ | ]

  • Stealthy: This vehicle does not lose any camouflage when moving at any speed, which is handy primarily for scouting.
  • HESH Rounds: This vehicle can fire special Squash Head rounds. These are extremely effective against angled armor that is typical for Soviet tanks.
  • Off-Road Capability: This vehicle has increased maneuverability in rough terrain and on soft surfaces that would normally slow a tank down.

Ammunition[ | ]

# Ammo
XP Cost Damage Penetration Velocity Reload
1 106mm M346A1 HEP HEP Stock 360 410 mm 650 m/s 25.00 s
  • Accuracy (Fully Aimed): 0.32 °
  • Magazine Type: Clip
  • Partial Reload: Yes
  • Reload within Magazine: 1.82 s
  • Fire Chance Bonus: 100 %
  • Damage Randomization: ± 15 %
  • Penetration Randomization: ± 15 %
  • Bonus Module Damage: 35 %
  • Spall Threshold: 137 mm
2 106mm M344A1 HEAT HEAT Stock 520 665 mm 700 m/s 25.00 s
  • Accuracy (Fully Aimed): 0.30 °
  • Magazine Type: Clip
  • Partial Reload: Yes
  • Reload within Magazine: 1.82 s
  • Fire Chance Bonus: 300 %
  • Damage Randomization: ± 10 %
  • Penetration Randomization: ± 10 %
  • Bonus Module Damage: 25 %
3 12.7mm AP AP Stock 15 30[note 1] mm 855 m/s 5.00 s
  • Accuracy (Fully Aimed): 0.98 °
  • Magazine Type: Clip
  • Partial Reload: Yes
  • Magazine Size: 800
  • Burst Fire Rate: 400 rd/min
  • Damage Randomization: ± 10 %
  • Penetration Randomization: ± 10 %
  • Ricochet Angle: 67.0 °

Upgrades[ | ]

Armor[ | ]

M50 Ontos Stock Armor
XP Cost Credit Cost Hull
Stock Stock 15 mm (vs AP)
25 mm (vs HEAT)
Steel 45 mm (vs AP)
55 mm (vs HEAT)
Steel N/A N/A vs AP
This vehicle's light armor offers basic protection from autocannons and machineguns.

Weapon[ | ]

# Name XP Cost Credit Cost Aim Time Reload Time More Info
Weapon1 Six 105mm M40 Recoilless Rifiles Stock Stock 2.50 s 25.00 s


  • Magazine Type: Clip
  • Magazine Size: 6
  • Reload within Magazine: 1.82 s
  • Burst Fire Rate: 33.00 rd/min
  • Depression/Elevation: -10.0° / 20.0°
106mm M346A1 HEP
106mm M344A1 HEAT
12.7mm AP

Engine[ | ]

Name XP Cost Credit Cost Max Speed Reverse Speed Forward
Hull Traverse Fire Chance
Chrysler HT-361-318 180 hp Petrol Engine Stock Stock 56 km/h 29 km/h 3.06 s (0 to 32 km/h)
9.59 s (0 to Max Speed)
63.55° 15 %

Parts[ | ]

Name XP Cost Credit Cost Description Notes
M90 Smoke Grenades
Stock Stock Comes with 6 charges in total
Magazine capacity: 2 charges
Takes 3s to recharge
Duration: 10s
Magazine reload time: 25s
Loading Assistant
Stock Stock Burst rate of fire is increased by 455%
Magazine reload time is increased by 22%
[note 2]
Improved Sights
Stock Stock Accuracy is increased by 39%
Burst rate of fire is decreased by 25%
[note 2]
Improved Optics Lenses
Stock Stock Accuracy is improved by 50%
Improved Optics Stabilizer
Stock Stock Reduces the accuracy penalties for firing and traversing the turret.
Improved Cooling System
Stock Stock Camouflage factor is increased by 2%
Enemy Thermal Sights effectiveness is reduced by 30%
Improved Tracks
Stock Stock Mobility (Light Terrain): 91.6%
Mobility (Heavy Terrain): 78.5%

Abilities[ | ]

# Name XP Cost Stats Activation
Duration Cooldown More
Retreat Ability Retreat
Stock Camouflage Factor: +10%
Acceleration: +50%
Vision Range: -25.0037%
Rate of Fire: -10.71%
N/A 20 s 60 s

This ability allows you to fall back quickly by temporarily improving your camouflage factor and acceleration. However, it also reduces your vision range and reload speed.

No conditions bound to this ability.


  1. 18 mm at 100m;
    15 mm at 1000m
  2. 2.0 2.1 Loading Assistant and Improved sights are mutually exclusive; equipping one upgrade will unequip the other.
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