A bit more information would help with the recommendations. What type of rifle are you thinking of...AR, AK, Mil-Surp, plinker, target, hunting, semi-auto, bolt action, etc? Do you have a specific caliber in mind? There are hundreds of rifle choices available, a bit more specificity will get you better opinions and not a long list of "name that rifle" type responses.
"The whole of the Bill (of Rights) is a declaration of the right of the people at large or considered as individuals.... It establishes some rights of the individual as unalienable and which consequently, no majority has a right to deprive them of." (Albert Gallatin of the New York Historical Society, October 7, 1789)
"A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government." - George Washington