The agx_physgun_v10.rar file you have requested: Skins / Weapons / Half-Life: Gravity Gun Gauss Replacement Skin - 756.84kb is not available. Perhaps try browsing all files for the game Half-Life and upload any files you want to share or are missing. This is the only information we could locate:
HL2 Physics Cannon (Gauss Replacement) - By Ag3nt-X.====================================================Installing >>-------------Extract to your Half-Life Foldereg.:|Steam HL - C:/Program Files/Steam/SteamApps//half-life/. This model replaces the gauss in Half-life with the Gravity Gun from Half-life 2. You can choose either the regular gravity gun or the Super.