doubt it - all it does is attach j_gun to tag_weapon_right

Check the tag orientationof j_gun before attach the weapons to the viewhands,
it has to be 0.000 - 0.000 -0.000. It looks that is rotated when you rig it with the arms

Caused by alt tabbing. Best way is to reconvert CFG materials with your own specs

For the first issue.

An image would help, but..

Are you using custom textures?

If so, did you add specular maps for them?

Are you using Stock textures?

If so, are th...