I ve found some custome parts for the M4 rifle.

I've replaced what I've wanted, and the parts are fonctionnal (like the T3N RDS optic, which I can sight in, for example)

but :

If I play FPS everything is displayed. same thing if I aim.
If I play TPS some parts are missing. they still are in the inventory, they are just not displayed on the screen.

I have to say, in TPS, depending of the angle of the camera, the items shorty appears sometimes.

Sorry for my English, hope this report will help the game developers