Long guns? Okay.
Steyr sniper rifle in .308
Thompson 1921, full auto w/short barrel
Solothurn 20mm antitank rifle -- out of date for modern tanks, but perfect for hunting if your quarry is dumptrucks and semis.
"Valor needs first strength, then a weapon."
-- J. R. R. Tolkien (1892-1973)
"Free men have arms; slaves do not."
-- William Blackstone (1723-1780)