The Necromorph Gun Leg is a grotesque fusion of organic and mechanical components, resembling a mutated limb repurposed as a weapon. Its structure is predominantly organic with exposed sinew and bone, seamlessly integrated with metallic plating and embedded firearm mechanisms. The surface is rough and uneven, featuring pulsating veins and sporadic glowing patches indicating necrotic energy. The 'barrel' is formed from a hollowed bone shaft, with a dark, oily substance oozing from its tip. The overall shape is asymmetrical, with the mechanical parts appearing crudely grafted onto the flesh, suggesting a hasty and painful transformation. The color palette is a mix of sickly greens, deep reds, and metallic grays, with the glowing areas emitting a faint, eerie light.