Hold-out needlers can be loaded with different types of darts, depending on the user's preference: the normal needler round (2d10 damage), the normal needler anaesthetic round (1d10 + sleep), or a round coated with a fast-acting lethal toxin (1d10 + S25/T3). Attempts have been made to introduce a small, explosive-tipped dart (3d10 damage), but the results have been mixed. Because they are so popular with criminals, hold-out needlers are outright banned in many jurisdictions. This also makes them a bit expensive compared to other hold outs. The image is of James Bond's wrist-gun from Moonraker.