A bolt shooter for a siege line. Two skein boxes on a stout carriage throw a pair of inswinging arms against a bowstring, over a slotted stock with a windlass slider and a loaded bolt, behind a hinged pavise front with a shooting slot. Four solid wheels roll. The skeins, the string and the trigger are a linkage held in one pose, so only the wheels move. Dimensions 2.48 × 1.99 × 2.68 m (X × Y × Z). Ground-contact origin under the footprint. Metre units, +Y up, +Z forward. Kingdom limestone, ashlar, timber, oak, iron, cloth, slate and straw, the palette shared with the castle construction and faction building packs. Rigid node-transform clips wheel-roll turn named parts on their own pivots. No skinning, no skeleton, no collision or navigation data.