Weapons

There are many weapons on Earth, The Ark, on Eligius IV, and on Sanctum which are listed here.

Axes


Axes are common, and can serve as utilitarian tools. As weapons, they are generally relatively easy to use for the amount of damage they can cause.

Bellamy Blake's axe appears to either be homemade or a re-purposed survival tool. He used it to open the depot. Clarke Griffin used it to cut John Murphy down before he suffocated from being hung.

Axes are also used by Grounders in the battles.

Knives
Knives are useful tools, that despite their small size can still be effective as deadly bladed weapons. Charlotte used a knife made from scrap metal to kill Wells Jaha. John Murphy has used his knife to threaten his victims. Lexa used a Scottish dirk. Knives are also used by Grounders, too. During the Final Conclave at Polis, Kane reveals that the Blue Cliff warrior has two Corvo Knives.

Swords
The Grounders used swords in close quarters combat and was used by Lexa after all of the Grounders cut a traitor to give the final kill. They also use these weapons in the battles.

Machetes
Machetes are also used by Grounder warriors as weapons.

Spears
A spear was thrown by a Woods Clan member into Jasper Jordan's chest. By inspection, the shaft appears to be made of wood while blade appears to be discolored iron or steel. Lexa also used a spear to kill Queen Nia.

Bow and Arrow
Used by Grounders, all bows seen have been short bows made of wood.

Crossbow
Only members of Floukru have been seen using crossbows.

M4A1
The 100 found some packed for long-term storage in an old military base. While the rifles still function well, much of the ammunition has gone bad. The 100 used M4a1 rifles to ward off Grounders attacking the Delinquents' Camp.

FNH Five-SeveN
Bellamy was given a semiautomatic pistol by Commander Shumway to kill Chancellor Thelonious Jaha. It ran out of ammunition after Wells Jaha shot the panther in "Earth Skills".

Beretta MX4 Storm
Beretta MX4 Storm can be seen in seasons 2 & 5, used first by the security detail at Mount Weather and then by the prisoners from the mining ship. Presumably the standard issue sidearm for prison guards, which were later obtained by the prisoners.

Norinco QBZ 97
The bullpup rifle, known as the Norinco QBZ 97 chambered in 5.56x45mm NATO, is a pre-war Chinese assault rifle. it appears to be the main guard weapon used in the Ark. It is seen frequently in Season Two, used by the Camp Jaha guards.

It is unclear how the survivors of the Ark acquired them, but since it is Chinese-made, it is possible it was part of a payload of supplies sent to the Shenzhen before the creation of the Ark.

CAA Tactical Roni
This gun is seen used by Finn Collins from "Many Happy Returns" to "Spacewalker". It was given to him by Bellamy Blake at the end of "Many Happy Returns".

Minigun (unknown model)
At the onset of Season Three, the vehicle used by various characters features a clearly visible minigun mounted on the front (to be used by the person in the front passenger seat). The weapon is of unknown origin, but likely originated in the now-vacant Mount Weather, as such a weapon would be illogical to use on a space station. Additionally, Mount Weather is known to have had an arsenal of heavy weaponry, such as guided missiles, so theorizing that the weapon originated there is not unrealistic.

Sniper Rifles
These firearms are known as only used by the Mountain Men. They have very good scopes and are suppressed, the first time we see it being used is in Season Two while two Mountain Men soldiers were hunting down Clarke and Lexa with a Remington model 700 in episode Coup de Grâce. At the end of the Season Four finale, Clarke Griffin and Madi also have a sniper rifle, which has the written names of people who's been lost. Kara Cooper also used a sniper rifle to shoot at the Wonkru defectors.

RPG
The Rocket-Propelled Grenade launcher is a Rocket launcher used by Otan, outside in the Dead Zone.

MP7A1
These guns were used by the Eligius Corporation.

Bombs
An explosive device created by Raven Reyes and used by Guard and the Delinquents. She used rocket fuel (hydrazine) from the crashed Exodus ship and gunpowder from bullets in order to make a bomb to blow up a bridge. The device proved powerful enough to destroy the structure as well as anyone nearby. In Blood Must Have Blood (Part 1), a hydrazine bomb was used to weaken Mount Weather's main door.

Landmines
Raven is also able to make landmines.

In the Dead Zone, two of Jaha's followers were killed in a mine field.

Grenades
Raven has been able to make explosive fragmentation grenades from available raw materials.

Knock-Out Gas Cans
The Mountain Men have grenades containing a knock-out gas. Knock-out gas is a strong general anesthetic.

Eligius IV had Knock-Out Gas Cans.

People on the Sanctum also have Knock-Out Gas Cans.

Flashbangs
Used by Mountain Men as a form of crowd control.

Gunpowder
The last of the loose gunpowder used in the bridge bomb was taken from old bullets, Jasper been able to make more gunpowder using his chemistry knowledge. In We Are Grounders (Part 1), Murphy used gunpowder to blow up a part of the dropship so he could escape from the Delinquents' Camp.

Guided Missile
The Mountain Men had a limited arsenal of guided missiles which home in on laser designators. Such a missile was used to destroy the Trikru village of Tondc and at least one more had been used before Season One.

Nuclear Missile
The Ark was in possession of nuclear missiles and warheads left behind from the Nuclear Apocalypse. One was rode into the Dead Zone by Thelonious Jaha, and A.L.I.E. was later in possession of the same missile in her mansion. In 2052, A.L.I.E. has launched nuclear missiles that have caused a Nuclear Apocalypse, including 27 ICBMs from China. In 2054, the Alpha Station launched one of the missiles that destroyed Polaris, in order to get all 12 space stations to join the Ark.

Damocles Bomb
The "Damocles" bomb is a weapon made of Hythylodium from the asteroid Proxima VI. Hythylodium was kept in massive tanks that were attached to a rocket engine. Then it was propelled by it into the ground and exploded on impact. It could destroy a massive area and make it toxic. Toxicity of Hythylodium caused lung disease that a large amount of Eligius Prisoners suffered from.

Missiles
The Gagarin has missiles that were used for blowing up rocks on the asteroid Proxima 6. When the prisoners and Diyoza along with McCreary took over Eligius IV and landed on Eden, they utilised the missiles aboard thei dropship to use them against Wonkru. Raven temporarily blocked the missile launch codes while she was on Eligius IV.

In Shifting Sands, Diyoza orders Shaw to fire a missile at the Wonkru camp. They hit the empty camp, while Wonkru survives in a sandstorm.

Poison
Used on knives/arrows/spears. The toxin is natural and derived from plant life similar to manchineel tree sap. The antidote comes from the beetles that feed on the river moss.

Acid Fog


Acid Fog or the Veil was a poisonous gas created by the Mountain Men. The Grounders had a warning system where they blew a horn to alert others of the fog. In Bodyguard of Lies, Bellamy Blake destroyed the Acid Fog machine so it is no longer be a threat.

Red Drug


The Red Drug is an addictive drug created by the Mountain Men. It was used to turn the captured Grounders into Reapers.

Hemorrhagic Fever
A virus used by the Grounders on the Delinquents to "soften the battlefield" prior to engaging with footmen for hand-to-hand combat. The Grounders infected John Murphy with Viral Hemorrhagic Fever and let him escape their prison camp. Murphy returned to the Delinquents' Camp and infected the Delinquents, causing at least three known deaths.

Worms
During Wonkru's march on the Shallow Valley, the worms attacked their scout, Obika. He was taken to Wonkru's camp in the wasteland. One of the worms that got out of him, attacked Octavia and got into her body. Clarke managed to take out the worm and put it into a jar. Kara Cooper experimented on the worms. Octavia wanted to use them as a weapon, to wipe out Eligius IV prisoners in the Shallow Valley, but Clarke unintentionally took the worms with her in a rover and dumped them in the wasteland.

Ark Guard baton
A Shock Baton or a Stun Stick is a short-range melee weapon. As an electrically powered stun baton, it is essentially a high-tech club that can also immobilized targets with a powerful electrical shock.

It was initially used as a non-lethal weapon by the Ark Guard to police the Ark residents. Once the Sky People arrived on Earth, under the Exodus Charter, the stun stick was then also used as punishment in the form of shock lashes.

Tone generators
A hand-held device that generates a specific tone that incapacitates any nearby Reapers. Used by Mount Weather Guard to disarm Reapers during harvesting.

The Sky People also used them in the Mount Weather War.

Mining Drill
A Mining Drill, also known as a Sonic Drill, uses sound waves to pulverize rocks. "[It] is the ultimate tool for interplanetary excavation. Company protocols dictate that operators must wear protective gear at all times, and the drill should be secured prior to use." The Eligius prisoners have repurposed these drills to be used as weapons against their enemies.

Shock Collar
The Shock Collars, also known as the Pulse Collars, are electrical collars used by the Eligius Corporation to control prisoners. After the prisoners' successful uprising, they use it on people they can't trust and for torture.

Traps
The Grounders use different various types of traps.

Bear Trap
They were bear traps in Shallow valley, one of which Clarke was lured on by Madi.

Paxton McCreary said he almost stepped on one over the radio when trying to hunt down Madi.