 Trigger Talk. The Matiba 6 Unica is a semi-automatic revolver. You can flip the cylinder out, put six rounds in, flip it shut. It's like a double action, single action. So the first shot is double action, but then it cycles back. It re-cocks the revolver into a single action position, the hammer, and it revolves the cylinder in the next chamber. Trigger Talk. Saturday mornings from 11 to noon and Saturday afternoons from 1 to 2.