@MontereyJack,
Sure it's about pistol grips.
‘(B) a semiautomatic rifle that has an ability to accept a detachable magazine and has at least 2 of--
‘(i) a folding or telescoping stock;
‘(ii) a pistol grip that protrudes conspicuously beneath the action of the weapon;
‘(iii) a bayonet mount;
‘(iv) a flash suppressor or threaded barrel designed to accommodate a flash suppressor; and
‘(v) a grenade launcher;
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So let's have your reasoning for calling a semiautomatic rifle with a pistol grip and a flash suppressor an assault weapon. Start with the flash suppressor. How has a flash suppressor been shown to make a shooting more deadly?
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Also, you brought up the 44 "school shootings" in 46 weeks in an attempt to justify banning guns.
Let's start with this one:
A 19-year-old student was shot by a masked gunman while getting out of a car at Achievement Academy, a high school. His injuries were non-life-threatening. Authorities believe an altercation occurred between the victim and shooter.
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So, is that your idea of school children being slaughtered, and a reason to ban guns? Simple yes or no. Then we can move on to the next shooting on your list.