
Duke's rifle, an 'unmodified' version of the Portman rifle, is effectively a lightweight version of Reaper's rifle with a similar body but a modified stock and a thin sheet aluminium fore-end.
This weapon was used by Razaaq Adoti as 'Duke' in the latter half of the Doom movie. The shroud is the fourth to be made for the movie indicated by markings inside, and is marked 'Portman' as with both of the examples from the film. The butt is made of cast rubber with a steel core, with the rest of the body of an aluminium construction excluding the 9V battery holder which forms a connector between the fore-end and the body. This is also made of cast rubber.
The weapon is made up of 5 seperate assemblies:
The buttstock, made of either rubber or in the instance of other examples, hard polyurethane foam/resin mix, which replaces the original G36C folding stock.
The G36C rifle, which has a double-optic carry handle and its flash hider removed, replaced by a steel barrel extension. Its magazine has side covers added to change its appearance, and the pistol grip has a rubber 'fingerprint reader' stuck to it.
The side pieces, made of aluminium and fitted with full electronics to activate the lights and display panel, which were powered by a 9V battery.
The fore-end assembly, which is made of folded sheet aluminium with an internal frame that fits around the G36 and offers up a RIS rail for attaching the tactical light to. Inside this is a Surefire Millennium M3 tactical light with a remote pressure switch.
The battery holder, an interconnecting component that holds the body onto the fore-end and helps shield the operator from backblast from the barrel extension.
Many thanks to Gary from Sci Fi Guns for photos of his absolutely gorgeous Duke rifle, and his assistance throughout this and other projects contributing to this photo essay.