Damn frontgrips (or FOREGRIPS, as they should be named)
So I ordered the MP5A4 RIS from Stefan Uribe and compared it to its normal counterpart, the model without a foregrip.
I'm guessing the game thinks there's a bipod attached to it, and therefore gun Balance suffers, which would make the gun LESS accurate. What good does a foregrip do exactly in gameplay terms? Its description field is blank.