Another vote for the '94 Winchester...and of course, the Marlin lever-action carbines. Probably the most underrated smallarm in the country, if not the world. If I'm to face an armed adversary, I much prefer that he's the AR/AK spray'n'pray practitioner than the country boy with his grandpa's old Thutty-Thutty.
The 1911, of course. Magazine capacity is fine. The pistol has been in continuous production for over a century, and they sell as fast as they can be produced.
The SAA and DA revolver. They remain, in spite of the Wondernines.
The '98 Mauser, which inspired all modern bolt-action rifles. Old faithful.