A heavy calibre muzzle blast. The outer cone is lathed with a rippling profile so its wall reads as fluted, a narrower core cone sits inside it, eight three sided flutes fire forward and outward and a torus marks the back blast. Bounding size 0.72 by 0.72 by 0.62 m, metres, +Y up, +Z forward. Origin: free. The origin is the muzzle mouth, so a developer places this mesh by the point the effect emits from rather than by a base. The geometry surrounds it, reaching 0.36 m below and 0.36 m above the origin. Opaque solid geometry throughout: this pack uses no alpha blending and no transmission, so the silhouette and the emissive material carry the read. Static mesh with no animation clip, no skinned rig, no collision and no navigation data.