@Jennifer4130 - Internet/Twitter Celebrity (Jennifer Mom) - became popular in 2014 with #GunSense #NotOneMore hashtag campaigns. She's so dumb, it's hard to tell if she's a troll or not -- but her followers seem to take her seriously -- so even if she's not dumb, her followers appear to be buying it. Her tweet about filing down the firing pin to make a gun fully automatic is classic Jennifer. Along with AR stands for assault rifle (it means Armalite), and a dozen other things. All that would really do, is mean is that your gun can't fire. Gun owners link her stuff: to mock her and her audience. But the fact that so many people follow her both amuses and infuriates the gun-cluefull folks, while her followers dutifully retweet her drivel.