You though that flashlight model is simple tube and texture? Well, I made it more complicated by adding simple internals and separate everything... Because why not....
As for model it self its Surefire Scout M620 with M952 mount and cable. It have 3 separate materials one for light it self, one for mount and one for battery so you can use just one part if needed. Of course I also added version without internal parts/battery.
Verts: 4.7K /without internals: 4K
Tris: 9K /without internals: 6K
Made in Blender.