Here is another sci-fi weapon design. A very economical, electric and rechargeable weapon. For modeling and texturing I used 3d-Coat, later I animate everthing in Blender.
All textures in 8K resolution.The downloads contains files for Unity 5, Unreal 4 Engine, Blender and a blend file with Cycles setup for rendering.
STL (Stereolithography, filesize: 384 KB), OBJ (OBJ, filesize: 835 KB), BLEND (Blender, filesize: 125 MB), UASSET (UnrealEngine, filesize: 386 MB), UNITYPACKAGE (Unity 3D, filesize: 201 MB), FBX (Autodesk FBX, filesize: 1.54 MB), DAE (Collada, filesize: 352 KB), LWO (Lightwave, filesize: 299 KB), TEXTURES (Textures, filesize: 400 MB), 3B (3D Coat, filesize: 173 MB), GLTF (glTF, filesize: 119 MB), USDZ (USDZ, filesize: 3.54 MB)