The present invention relates to novel compounds of Formula, to a process for their manufacture, to pharmaceutical compositions containing them, and to their use in therapy, in particular their use in the prophylaxis and treatment of respiratory diseases. The illuminating recoil guide rod 10 of the present invention is completely unobtrusive and is activated simply by drawing the firearm 12 from the holster and raising the barrel 36. Arm includes an arm fairing surrounding at least one fuel transfer tube to tip.