Ticker: Odd, twelve shot revolver, distict chiming sound upon firing. The ticker is mostly just an extremely high velocity, small calibre revolver, however it has an odd reload mechanism. Every time a shot is fired, the action cycles it back to the first (usually depleted) chamber, it then cycles forward exactly one chamber per perfect second, making the famous ticking noise, until it reaches a loaded chamber, whence it can fire again. The catch? Each second the Gun ticks away, time stands still for all but the slinger, and even then only if he keeps hold of the Gun.
Halley: Automatic (tommygun, machione pistol, smg, whatever fits the setting), illogically extended magazine and only takes very small cartridges. never ever jams. Named after the comet, Halley performs the "once every 75 years" thing on a regular basis. As long as the trigger is held and the weapon is loaded, the recoil of the Gun will always jerk the slingers aim to nigh perfectly shoot down every bullet in the air infront of him, making him next to invulnerable in a face to face shootout. However, also like teh comet, halley always lets every 75th through. Whether that shot hits the slinger or misses anyways is entirely up to the shooters aim, but you can never get to confident, lest this girl decide it's just your time.