I finally found some time to finish this one. I did the 3D model earlier this year but never got to texturing until now. I had some trouble finding good reference images so I ended up using a bunch of different Kylo Ren's lightsaber designs as a reference material, and therefore it's not 100% accurate but I think it's pretty good.
I used Blender for modeling and Substance Painter for texturing and rendering the lightsaber. Color correction and PP was done in Photoshop. The model has roughly about 12.5k triangles and uses a single 2048x2048 map.