The following weapons were used in Season 3 of the television series A Certain Magical Index:

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Pistols

Fictional Pistol

Accelerator aims his sidearm at Heaven Canceller during a confrontation in "The Dark Side of Academy City".

The Girl in the Dress takes out her sidearm after being blocked by a shutter.

Glock 17

The Glock 17 is seen in "Chaos" with Motoharu Tsukimikado, which he uses to shoot at Monaka Oyafune.

Glock 17 (2nd Generation) - 9x19mm

Tsukimikado takes out the Glock 17 in "Chaos".

Closeup of the Glock. It's only hard to see since the scene is animated at night.

Tsukimikado aims the Glock 17 at Terra of the Left in "The Document of C".

A good shot of the pistol to show that it's a 2nd gen Glock 17.

Tsukimikado opens fire with his pistol in "The Dark Side of Academy City".

IMI Uzi Pistol

An IMI Uzi pistol is seen in "The Dark Side of Academy City" with a black marketer.

IMI Uzi Pistol with 25-round magazine - 9x19mm

The Uzi pistol seen in "The Dark Side of the Academy City".

The dropped Uzi pistol.

Smart Gun

The Smart Gun is briefly seen in "Chaos" in a flashback sequence when Touma explains what happened in the previous two seasons of Index.

Touma narrates what happened in the 2nd season as Ritoku Komaba draws a smart gun at Accelerator.

Assault Rifles

Bullpup Assault Rifle

The bullpup assault rifle is used by seemingly Hound Dog forces in the season. The second season has them using Tavor TAR-21s.

The HD commando breaches into an apartment in "The Dark Side of Academy City".

In this shot, you can see the transparent 30-round magazine loaded.

Machine Guns

Browning M2HB

What appears to be a Type 10 MBT is on display at a Academy City weapons trade show in "Chaos".

Browning M2HB - .50 BMG

The Type 10 MBT on display in "Chaos". The M2HB would be mounted on top, although the shape of the muzzle makes it appear to be a Barrett-type rifle.

GIAT M621

The GIAT M621 is seen mounted on an armed drone on display at a Academy City weapons trade show in "Chaos".

GIAT THL 20 - 20x102mm

The armed drone on display in "Chaos".

=Sniper Rifles

Custom Sniper Rifle

A high-tech custom sniper rifle is used in "The Dark Side of Academy City" by SCHOOL-recruited mercenary Chimitsu Sunazara in an attempt to assassinate a VIP.