Armored Security Vehicle M1117 Guardian1-5

M1117: General
Date of first acceptance April 2000
Manufacturer Textron Marine & Land Systems Crew
4 men:
  • Commander in hull right front
  • Gunner in turret
  • Driver in hull left front
  • 1 passenger
M1117: Dimensions
Combat weight 29,500lbs
Height 102"
Length 239.0"
Width 101.0"
Tread 84.3"
Wheelbase 121.25"
Ground clearance 18"
Fire Height ~86"
M1117: Armament
Type Mount Ammunition Traverse Max traverse rate Elevation
40mm Automatic Grenade Launcher Mk. 19 Turret 600 rounds
(100 ready)
(manual and electro-mechanical)
45°/sec +45° to -8°
.50cal M2HB MG Turret 800 rounds
(200 ready)
(manual and electro-mechanical)
45°/sec +45° to -8°
Aiming equipment
Periscope M36E2 or M36E3 for gunner
Night vision
Passive periscope AN/VVS-501 for driver; periscope M36E2 or M36E3 for gunner
M1117: Armor
Rolled hard homogeneous steel
Rolled hard homogeneous steel
M1117: Automotive
Engine Cummins 6CTA8.3; 6 cylinder, 4 cycle, turbocharged, inline diesel
Horsepower Gross: 276@1,900rpm Torque Gross: 858 ft-lb@1,300rpm Fuel capacity 50gal
Transmission Allison MD3560, 6 speeds forward, 1 reverse
Steering Hydraulic, steering wheel
Brakes Dual hydraulic with electric back-up
M1117: Suspension
Type Road wheels Shock absorbers
Independent coil spring 2/side On each wheel
M1117: Performance
Max level road speed 63mph
Max sideslope 30%
Max grade 60% Max trench 18"
Max vertical obstacle 22"
Min turning diameter 55'
Max fording depth 60"
Cruising range ~440mi, roads
~710km, roads

The 4x4 or 4x2 M1117 was built for US military police use. A door with integral vision block and firing port was provided in each side of the vehicle, and a clamshell door was installed in the right rear corner in a similar layout to the M706. Also like the earlier vehicle, there were roof hatches over the driver's seats, an engine access hatch was installed on the rear of the left side of the vehicle, and a Braden 15,000lb (6,800kg) winch was provided in the right bow. The driver controlled a central tire inflation system with preset values for travel on highways (4.9bar [71psi]); cross-country (3.1bar [45psi]); mud, sand, and snow (1.6bar [23psi]); and for emergencies (1.2bar [17psi]). The system would also automatically compensate for a tire air leak, and the tires themselves featured runflat inserts that allowed movement at speeds of up to 48kph (30mph) for 40km (25mi). The weapon station was the Cadillac Gage Upgunned Weapon Station, shared with the AAVP7A1, and a bank of four M257 smoke grenade launchers was mounted on each rear corner on the turret. In addition, a 500,000-candlepower spotlight was mounted above and elevated with the machine gun. A pintle mount capable of accepting an M249 squad automatic weapon was positioned outboard of the machine gun on the turret's right side. A V-shaped hull helped protect the vehicle against mine blasts. M1117 was protected against overhead attack from a 155mm shell from 15m (49'), its wheels could withstand a mine filled with 12lb (5.4kg) of TNT, and the vehicle could survive 4lb (2kg) of TNT anywhere. Modular Expandable Armor System 2C (MEXAS 2C) applique ceramic composite armor and spall liners could be fitted that made the vehicle proof against .50cal AP at 250m (820'). The M1117 could carry more passengers after interior modifications. The US Army had accepted over 2,777 vehicles by April 2011.




  1. Hunnicutt, R.P. Armored Car: A History of American Wheeled Combat Vehicles. Novato, CA: Presidio Press, 2002. Reprinted from Armored Car, R.P. Hunnicutt ©2002, available from Presidio Press, 505B San Martin Drive, Suite 160, Novato, CA 94945.
  2. Zwilling, Ralph. Guardian in Detail. Prague: František Kořán RAK, 2010.
  3. Guardia, Mike. US Army and Marine Corps MRAPs. Oxford: Osprey Publishing Ltd., 2013.
  4. Federation of American Scientists. "XM1117 Armored Security Vehicle (ASV)." DOD 101. 22 Feb 2000. 13 Dec 2013 <>. DOD 101
  5. Kable. "M1117 Armoured Security Vehicle - Army Technology." Army Technology. 13 Dec 2013 <>.
Last updated 9 Dec 2023.
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