Here's a bit from the Colorado RKBA newsletter I get:
Clicking on the links at the bottom will eventually get you to the ATF's commentary site where you can suggest that they have been given a fools errand that ultimately will either ban nothing or else ban everything.A Reminder from GOA: The Bureau of Alcohol, Tobacco, Firearms, and Explosives has requested comments from gun owners on pending regulations that could ban bump stocks. Gun Owners of America URGENTLY needs you to speak up by the January 25th deadline set by the ATF and help us incinerate this proposal before it even hits the House floor. The proposal to ban bump stocks is nothing but a political game orchestrated by Nancy Pelosi. Most gun owners don’t even own bump stocks, but Pelosi knows that the second Republicans give her an inch, she’ll take a yard and stab them in the back. This is a dangerous slippery slope that we absolutely cannot cross. This is exactly why Gun Owners of America has officially taken a no-compromise stance. Our Second Amendment is clear. We have a right to bear arms. Period. Our Founding Fathers were wise enough to know that if we start sacrificing our God-given freedoms for a false sense of security from a nanny-state government, we’ll be left with neither liberty nor security. Every gun owner needs to realize that if the ATF can unilaterally ban bump stocks, THEY CAN BAN ANYTHING THEY WANT. We need to fight back... ( GOA's links eventually lead to the previously shared link for The Federal Register, which only provides for comment by postal mail or fax. However, the second link offers suggested text for your comments.)
The obvious solution, to me anyway, is to repeal the GCA '68. Think about it. Having done this, the demand for bumpers dries up and they disappear from the market, after having driven the price of real machine guns down to a competitive level. See? Problem solved.