GunCus is a mod for minecraft initially created by Stuuupiiid. See his original thread here: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/1287097- Following is decision to discontinue the mod, he agreed to give LemADEC and BlackHawk8100 permission to use the code => http://gyazo.com/2d9715fca81138e64d66f797342c5d67 (Original author statement)[https://cloud.githubusercontent.com/assets/4776032/26628630/23cbf9c0-45ff-11e7-96af-fe11e51bec75.png)
This mod is maintained in the context of the FunSquareGames and WorldWarMinecraft modpacks. Bug reports and pull request are more than welcome.
Public distribution of binaries are not authorised without prior explicit permission. Official binaries are available on CurseForge https://minecraft.curseforge.com/projects/gun-customization and PlanetMinecraft https://www.planetminecraft.com/mod/gun-customization/
Explicit permission is given to distribute official binaries as part of a modpack.