The Arvus Lighter is a small, general purpose cargo shuttle that is widely used by the Imperium of Man for many tasks, both in space and on the surface of planets. The Arvus is commonly used by both Imperial Navy warships and Imperial merchant vessels, including Rogue Traders. The Arvus is just one of many types of small, void-capable shuttles used by the Imperium. The Arvus is piloted by a single pilot, and is not equipped with any weapon systems, in fact, the Arvus possesses only the most basic navigation equipment, external sensors, and proximity alarms. The Arvus has a powerful engine that allows it to carry heavy cargo to and from a planet’s surface
There were quite a few Arvus Lighter models on display at Warhammer World.
Some of these are the original resin Forge World models, but there was also some examples using the new plastic kit that was released for The Horus Heresy. The main differences between the resin and plastic models are in the engine cowling and around the cockpit. Otherwise these are very similar models.
I have the new Horus Heresy plastic Arvus Lighter on my workbench.