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Capstone FH155
Jc3 Capstone FH155
They're all in Medici Military colors.
Weapon in Just Cause 3
Type Anti-aircraft autocannon
Usage Tripod, can be moved with a grappler
Maximum ammunition in the weapon Infinite
List of owners Medici Military
The Rebellion

The Capstone FH155 is an anti-aircraft weapon in Just Cause 3.


It's an anti aircraft autocannon with 4 barrels and 2 bullet belts coming from the sides to feed the weapon. The weapon is on a tripod and has shield on the front. According to the text on the ammunition boxes and near the gunner' seat, it uses 40mm ammunition ("FH155 40mm").


The FH155 is fully automatic, but fires very slowly. It fires one gun at a time, but those can be devastating at taking out aircraft, as well as infantry.

Typically when getting near one of these guns found in military bases (when they are not completed yet), they will often spawn with a Medici Military soldier using it. If Rico deploys his parachute or wingsuit nearby, the soldier will try to shoot him down. If the player walks close to a FH155 with a soldier operating it, the soldier will dismount and attack the player.

Surprisingly, it works underwater.

The shield can only protect the gunner from small arms fire.

The weapon is always on a tripod, so it may seem stationary, but it is possible to move it using the Grappler. One can either retract the cables to move it, or tow it with a vehicle. Towing the weapon to a better angle allows the player to destroy larger Sabotage Destructable Objects with ease and no ammunition cost.

Strangely when used by Rico it can catch fire, but not explode, but when enemies use it, a select few weapons, like the machine guns on the Urga Postolka, are able to destroy it.



  • "Capstone" is one of the finishing or protective stones that form the top of an exterior masonry wall or building.
  • "Feldhaubitze FH155-1" (also known as FH-70) is a 155mm towed howitzer in use with several nations.
  • It's made by the fictional company Capstone.
  • It's the successor to the Flak Cannon from Just Cause 2.