Become a member today and start sharing your creations! I had a problem where when I make the 2 portals the world becomes something like a mirror and everything just goes nuts. Portal Gun Skin Mods for Portal (PRTL) Browsing history matches: [] Login Login. open the mod options menu, which you can find on the pause menu, and find the portal gun mod. Portal Gun - Download Free 3D model by KGM5 (@KGM5) [7ec0ac3] A Portal (PRTL) Skin Mod in the Portal Gun category, submitted by bwest2005 Portal Gun: The portal gun comes in a few different colors and can create portals corresponding to its color. well for anyone who has the same problem I have a way to fix it if you haven't already. This is 1.12.2 by the way. Portals are made by left and right clicking, portals cannot be made on transparent blocks, if an invalid location is selected for a portal there is a small particle effect similar to the game Portal.