](https://images.steamusercontent.com/ugc/1973170331016312418/FA7C459405B20832E29E0772B466C4C23BA625BD/)
Aperture Science Handheld Portal Device [Portalgun](Portal Rtx)
Aperture Science Handheld Portal Device [Portalgun](Portal Rtx) for Garry's Mod on the Steam Workshop.
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Aperture Science Handheld Portal Device [Portalgun](Portal Rtx) for Garry's Mod on the Steam Workshop.