The Sixth Gun #21 (Oni Press, 2012)

Using the power of the Sixth Gun, Becky Montcrief invades the sanctum of the Knights of Solomon in order to rescue Drake Sinclair! Becky's enemies have often seen her as the helpless damsel in distress - but no more! Once she's finished with them, the Knights will know without a doubt that she is the deserving wielder of the deadliest weapon ever created!