That's yet another Obama myth being passed around (anti-guns).
My son, who recently became enamoured of guns and shooting, was making the gun shop circuit locally, trying to locate a certain type of clip. Every shop owner was virulently anti-Obama, claiming he was trying to take away our gun rights. My son, who is very pro-Obama, was just shaking his head in disbelief at the ignorance.
He's getting quite an education this year on how politics works.