I Have lots of weapon mods but don't now how to add them to my weapons do I have to use the workbench or something? :cryvaultboy:

Nope. Go into your inventory and hover your mouse over the weapon you want to mod. Up in the top right hand corner of the pip boy, below repair, you'll see Mod, with the button/key you're supposed to press (X on PC). Just press that button and it will let you mod that gun.

thanks a bunch pal it was LB :thumbsup: