Weapons Texture Problems

Garry's Mod general
#1

My problem is that then I have imported a weapon pack and installed it on the right place.
G Mod recognises the weapon pack and all the weapons is showing under the weapon menu in the game, but when I chose a weapon I keep getting two texture cubes, one in the upper right corner and one in the left.

Any one have an idea how I can fix this?

Here is a screenshot of the problem

#2

The only thing I can think of is that they are ERROR models, too close for you to read. Try looking at yourself in third person, and see if that’s what they are.

#3

how do I look at myself at 3D person?