On which western TV series, does the hero (main character) refer to his sawed off rifle as a "Mare's Leg"?
Correct answer: Wanted: Dead or Alive

Player #4476480
Henry Repeating Arms also offers a choice of 5 different Mare's Leg pistols.

Tiggsmeister 43
Huh, guess they found it when trying to find props for Firefly.

Gary
He's the only one who carried a sawed off rifle.

elle kay esse
Tiggsmeister 43, YES! Zoe had one...

STEPHEN BODDY
Wasn't that same rifle used on Johnny Yuma the "REBEL"?