Smoking article and mouthpiece therefor

A mouthpiece attachable to a smoking article rod portion having a recess defined by a tubular element, the mouthpiece comprising an elongate cylindrical element, having adjacent first and second portions each extending partially along the length of the cylindrical element, the second portion forming a mouth-end of the mouthpiece and the first portion being arranged to be inserted into the recess by a user;

• and
• an annular element formed from a molded material, the annular element having a larger external diameter than the first portion of the cylindrical element, and
• wherein the cylindrical element comprises a cavity comprising particles of an aerosol modifying additive;
• and
• the mouthpiece having a larger external diameter at the second portion than the internal diameter of the recess, and
• wherein the first portion of the cylindrical element comprises an outer surface having at least one circumferentially extending raised area, and
• wherein the circumferentially extending raised area extends around substantially the whole circumference of the cylindrical element, and
• wherein the annular element extends beyond the mouth-end of the cylindrical element, forming a recess at the mouth-end of the mouthpiece.