I got my info directly from the NRA magazine in the office where I was working at the time.

Ads for fingerprint resistant handgrips, the question you didn't bother to ask, were in the magazine!

The ads for the parts to turn certain types of semi-auto weapons into full auto were in the smallprint section of another magazine which I believe was Soldier of Fortune. The manufacturer of these "parts" also advertises other merchandise in the NRA magazine.

Again, I support the right to keep and bear arms. I'm not anti-gun.

As far as the DC handgun ban goes, I support it.