@overheal: I can send you the files for the firemace so you can compile it with the particle if you post your email. It's just a line of text in the QC file you need to uncomment.
@RamirezBorislav: Post your email and I'll send you the QC and mesh so you can compile your own version.
@404: User Not Found: I think if it's used as a full model replacement then using the model as a world model should be OK for mods if the bone setup is identical. With the current pistol it uses two different models which are weighted differently.