It's delightful to see conservatives rediscover civil rights arguments after Democrats in the House of Representatives held a sit-in to protest the GOP's refusal to vote on even the most modest gun control measures.
Traditionally, though, civil rights are listed in the First Amendment: the freedoms of religion, speech, the press, peaceful assembly, and the right to petition the government.
In the case of the Orlando shooting and others, the "right" to buy an military-grade rifle threatens everyone's rights. The First Amendment and the Second (in its current interpretation) are in conflict.
Polling as well as common sense says the Second Amendment is not an unlimited right; the sentence itself says, "A well regulated Militia, being necessary to the security of a free State..." a clause which limits gun rights in a way that the First's rights are not limited. Additionally, the civil rights ensure a civil society, while the Second makes arms a last resort -- when citizens need to use force. While this perverse possibility excites some, thankfully they are in the minority.
We need gun control because the purpose of the Second Amendment's meaning has been twisted, and our politics have grown toxic. The NRA and GOP Congressmen stand with a "right" that ensures more mass shootings; they offer prayer when the dead cry for a change in policy.