Abstract: A double barrelled firearm includes first and second parallel barrels attached to a casing which includes a pair of spaced parallel arms. A firing lever is pivotable about a bearing extending between the spaced arms from a first non-firing position to second firing positions successively inwardly of the casing. A bolt is slidably mounted on the casing at a location rearwardly of the barrels. The bolt has first and second firing pins aligned with the first and second barrels. The first and second firing pins have extending therefrom respective first and second stops of different lengths. The first and second firing pins are urged toward the first and second barrels respectively. The firing lever has on a first end thereof a guard which, when the firing lever is in the first non-firing position thereof, acts on the first and second stops to maintain the first and second firing pins spaced from the first and second barrels, against the force of the urging means.