This short clip from CNBC explains why the AR-15 is so popular. It is relatively inexpensive. It is light. It doesn’t have much recoil. And it is very powerful.

The NRA would have us believe that any effort to ban it violates the Second Amendment. What they don’t admit is that such weapons were banned from 1994-2004 but the ban expired and was not renewed. The ban was supported by Presidents Reagan, Ford, and Carter.

The AR 15 and similar weapons are called sporting rifles but it hardly seems sporting to use such a powerful weapon to kill deer or squirrels or any other animal that prowls the woods.

It has become the favorite weapon of mass murderers.

Watch the video to see which corporations manufacture these weapons of death.

Make sure you are not invested in these funds, which are unwilling to withdraw their holdings in gun manufacturers.

Pension funds, especially teachers pensions and government workers funds, should divest their holdings in all these corporations. State pension funds could divest

Do not invest in weapons of war.

As it happens, some of the largest index funds are using their clout to demand that the gun manufacturers take affirmative steps, like producing so-called “smart guns,” which respond only to the fingerprint of their owner. But that’s not enough. It leaves millions of these killing machines on the loose.

How many more mass killings are necessary before we ban them and criminalize their possession?