How do i attach a red dot sight to my weapons in BFBC2?

i have completed a lot of the weapon challenges in BFBC2 now and just got my F2000, or whatever its called, but i fail to understand how to attack a red dot, or acog sight to any weapon, HELP?How do i attach a red dot sight to my weapons in BFBC2?
You unlock your Red Dot for assault when you get 14.000 total assault points.



Once you've unlocked it, open the drag up menu while your dead. Hover over your various specializations until you find your red dot specialization. Simply select it and spawn and you'll have it.How do i attach a red dot sight to my weapons in BFBC2?
I don't think you can attach weapon sights to weapons that is MW2 that your maybe thinking of, you pick a gun with already sights on it.How do i attach a red dot sight to my weapons in BFBC2?
It is 14,000 xp for red dot for all classes. You can find it in the Gadgets tab.
if you have unlocked it in that class its in specialization 2 or 1