TF2:FT is a mod for TF2 that adds new weapons and convars.
I'm not an animator or modeler, so I have used the following mod's assets for some of the weapons:
TF2 All-Class Crowbar (SFM Beta version)
SilentFox3 did texture/model edits to the crowbar found in the SFM Beta leak and also re-rigged it.
I used the model and textures to make the AK.
Used their custom item schema to make custom weapons work
Helped me fix an error when trying to equip custom weapons
The SDK is licensed to users on a non-commercial basis under the SOURCE 1 SDK LICENSE, which is contained in the LICENSE file in the root of the repository.
For more information, see Distributing your Mod.