Inside Jab

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(Dramatic scream) Come on, I don't have all day.
The Spy waiting for a scrapped back-shot

The Inside Jab is an experimental melee weapon for the Spy that was being play-tested by Valve. It appears to be a contraption attached to the Spy's sleeve made of gray Revolver parts, with the "blade" being a long button that may activate the adjacent barrel. The existence of this weapon was first discovered in the form of a VTF filename string found in the texture_preload_list.txt file that had been added to the game as part of the October 28, 2015 Patch. The string found was models/workshop/weapons/c_models/c_pistol_knife/c_pistol_knife.

Almost two years later exactly (off by 8 days), the backpack icons, model, and textures for the Inside Jab were accidentally leaked in the Jungle Inferno Update. Based on the patch diff for the update, it appears that when Valve migrated some weapons and cosmetics over to the tf\models\workshop directory from their original directories (tf\models\player\items and tf\models\weapons\c_models), they accidentally migrated some staging build (in-dev) Workshop content they were testing at the time (if not for the past two years) and pushed it in the update.

The Inside Jab was contributed to the Steam Workshop.

Update history

October 28, 2015 Patch

  • [Undocumented] A VTF filename string for the Inside Jab was found listed in texture_preload_list.txt, a file that had been added in this update.

October 20, 2017 Patch (Jungle Inferno Update Patch 1)

  • [Undocumented] The files for the Inside Jab were added to the game.

Unknown date

  • [Undocumented] The files for the Inside Jab were removed from the game.


  • Attempting to load the weapon model up onto the c_spy_arms.mdl to test viewmodel sequences will result in odd parenting of the weapon unless you stick to the acr-prefixed sequences for the arms.
    • The acr_stab_b (a sideways slash) and acr_stab_c (a diagonal slash) animations both look odd with this particular weapon model.
    • acr_stab_a is the only stab animation of the three that looks suitable for this weapon, as the weapon's piston actuates during this stab animation. It does not appear to actuate during the _b and _c stab animations however.
  • It is unknown whether or not this weapon would have also fired a gunshot during a stab or backstab.