A six chamber revolving grenade launcher with a spring driven cylinder, loaded rounds in every chamber, a top rail, front and rear grips and a side folding stock. Dimensions 0.150 x 0.385 x 0.497 m (X x Y x Z). Origin at the footprint centre, resting on y = 0; metre units, +Y up, muzzle and point toward +Z. Named pivots: cylinder at (0, 0.2178, 0.0803); stock-fold at (0, 0.2378, -0.0397). Connectors: optic optic-rail at (0, 0.3202, 0.1003) facing +Y; muzzle muzzle at (0, 0.2178, 0.2403) facing +Z. The cylinder indexes on its axis and the stock folds against the frame. The clockwork drive, the ratchet and the trigger linkage are modelled and left static. Rigid node-transform clips open, close, spin drive named nodes on their own pivots. No skinning and no skeleton. Blued gunmetal, bright machined steel, dark anodised alloy, black and dark earth polymer, rubber, walnut, brass, copper, leather, olive paint, optical glass, concrete and emissive red, green and warm white for reticles, lasers, tritium and lamps. Physically based flat colours with no texture maps. Original invented design: no real make, model, manufacturer or marking is represented. Free 3D model for Unity, Godot, Unreal, three.js and Blender. No collision or navigation data.