Time, place, and manner restrictions on the freedom of speech in the First Amendment prevent parades in your neighborhood at 3 A.M. and people shouting "Fire!" in theaters.
Exigency exceptions to the Fourth Amendment obviate the necessity for a warrant if police hear somebody bring murdered in the home.
Don't get me wrong, I support very few restrictions on firearms (background checks, a somewhat more thorough - though easier than now - check on full-autos and explosives, and no violent felon ownership really being the only ones). But the "shall not be infringed" argument hasn't been true since the country's near-infancy, and most importantly the courts know this. We need more persuasive arguments than that.
Beretta PX4 .40 - Colt 1968 Detective Special .38 Spc.- Ruger LCP .380 - Daniel Defense M4V1 Carbine 5.56 - Ruger 10/22 .22LR - Remington Express Tactical 870 12GA