and by the way, there is nothing within the bill that says we can't modify an AW as long as it was legally owned/possessed before the law takes effect, and as long as it is registered by the date they set. this means we most likely can unpin our stocks, unpin our muzzlebreaks, add flash suppressors, grenade launchers, rocket launchers, sound suppressors, bayonets, anything you want, to any rifle you want.
it's a technicality at this point, and I'm not 100% certain on this, but I can't find anything stating this CANT be done. I'll research/read more once I can make a definitive assertion. so don't go modding your rifles just yet lol, wouldn't want you to get in trouble because you think I said it's ok to do yet