I am working on my mod and I wanted a new gun, so when I made the model and then the problem came.
The model didn't compile into a normal Half Life .mdl so i switched from the Jed's Half Life viewer decompiler to Milkshape Half Life decompiler and it was good i managed to decompile it and compile it but when i looked at the model the HEV hands were in the air and not on the gun.
I have no idea how to fix it.

Here is a picture: https://www.moddb.com/mods/blue-mesa/images/screenshot-161#mediaform