This 2003 Leak Irifle Mesh Rigged to Retail Hl2 Bones and Hands doesn't warrant much comment.
It offers two shader options.
Original Shaders (specifically designed to represent the world around it, in cubemap maps)
Post Ep1 Shaders (phong - this will have a gloss-like surface when hit by light sources)
2003_Leak_irifle_mesh_for_the_ar2.zip
Key Authors
Akis_02
Everything
Valve
original content
Version
Unknown