Now before going all 'it'd ruin the balance of the game' on me, consider maybe if you had to give up all your other perks to have 2 attachments on something?
I just feel like the whole attachment thing could've been done better. Having the ability to put 2 attachments on your weapon would really feel cool, and if done right, could be balanced as well.
Your thoughts? At the moment I kinda want this more than anything else I can think of.